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Carter Kieboom

Nationals Notes: Kieboom To Start At Third, Denaburg Out, Cavalli In

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Speaking to a handful of DMV-area reporters, Nationals’ manager Davey Martinez said that he expects Carter Kieboom to be the starting third baseman, MASN’s Mark Zuckerman, and Todd Dybas of NBC Sports were among those reporting. It’s a bit of a surprising revelation from Martinez, as last we heard, Kieboom wasn’t even a sure thing to make the Opening Day roster. At the same time, most projections had the 22-year-old making his play for the hot corner by August, surely, so it might be that not much has changed in terms of organizational outlook. More on this and the other goings-on around Nats’ camp…

  • One change that might have affected the Nats’ plan for Kieboom, however, was Ryan Zimmerman opting out for the season. Without Zimmerman, there seems to be plenty of at-bats to go around the remaining veteran contingent of Nationals’ infielders. First base should fall to a strict platoon between Howie Kendrick and Eric Thames, while the off-day first baseman is also likely to split time at DH with Asdrubal Cabrera. Starlin Castro, then, would handle second base relatively full-time while occasionally being spelled by either Cabrera or Kendrick. The Nationals tend to let their prospects play full time, so if Kieboom keeps the starting role through Opening Day, he’s likely to get more-or-less the full slate of 60 games to prove he deserves it.
  • Updating some numbers for us, Jesse Dougherty of the Washington Post mentions that the Nationals have about 49-50 guys in camp right now of the 58 currently named to the player pool. That said, the Nats’ are widely expected to add first-round pick Cade Cavalli to their 60-man player pool shortly, per TalkNats. The Nats have a few open spots on their roster now that a number of players have opted out for the season (Ryan Zimmerman, Joe Ross, Welington Castillo).
  • As the Cavalli addition presupposes, the Nats have chosen to include most of the organization’s highest-regarded prospects in the 60-man player pool. That group would have included Mason Denaburg, were he not out for the season recovering from offseason surgery, per Stephen G. Mears of TalkNats. The 6’4″ former catcher ranks eighth on the Nats’ top prospect list per Baseball America. He was the Nats’ top draft choice in 2018, though he’s managed just 20 1/3 innings of pro ball since then.

Replacing Legends

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If you trust Braves’ third base coach Ron Washington, Austin Riley has a long and bright future ahead of him with the Atlanta Braves, per The Athletic’s David O’Brien. Said Washington, “He’s a very, very special kid. He’s on that special level with Ozzie (Albies) and (Ronald) Acuńa (Jr.) and all those young guys. He’s on that special level with them.”

Given Washington’s stellar reputation as an infield instructor, his word carries some weight. He goes on in O’Brien’s article to laud not only Riley’s long-term future with the bat, but with the glove as well, calling Riley “a tremendous third baseman.”

While it’s certainly encouraging for Braves’ fans to hear Washington speak so highly of Riley after an up-and-down rookie season, the path ahead is not without obstacles. For starters, he hasn’t locked down his spot in the starting lineup. All accounts suggest he’s going to have to earn his keep while being pushed at third by Johan Camargo. After his first month of big-league action, it would have seemed unfathomable that Riley wouldn’t have the 2020 third base job locked down, but Camargo remains very much in the running, despite struggling himself in 2019. Camargo’s year was worth -0.6 rWAR after hitting only .233/.279/.384 over 248 plate appearances. He’s played much better in the past (4.4 fWAR from 2017 to 2018), and the Braves appear confident he can at the very least hold the line for a year.

Should Camargo get the bulk of playing time at third, Riley could get at-bats as a designated hitter –  at least in theory. But O’Brien notes that the scuttlebutt out of Atlanta pegs Marcell Ozuna as the likeliest option to see heavy minutes as a potential DH. Makes sense with Ronald Acuna Jr., Ender Inciarte, and Nick Markakis on hand to handle the outfield rotation. Riley himself could even see some minutes out on the grass depending on how things shake out.

But the real question at hand here is this: is Austin Riley the third baseman of the future for the Atlanta Braves? Ron Washington certainly seems to think so. If we trust Washington’s eye for defensive talent and assume Riley can stick at third base (or even become a plus defender), the question is whether his approach at the dish can improve enough to take advantage of his otherworldly power.

After all, Riley’s power numbers last year were excellent. He managed a .471 SLG with 18 home runs in just 274 at bats. His isolated power was .245 ISO, well above average and a number you’d hope for out of a middle-of-the-order bat. For context, Acuna Jr. walked away from 2019 with a .238 ISO. A full season at Riley’s mark would put him among the top-40 mashers in the league by isolated power. His power plays.

But even with those numbers, Riley’s total offensive contribution amounted to 14 percent below league average by wRC+. He needs to round out the rest of his game – and that starts with cutting down strikeouts. Riley’s walk-to-strikeout numbers are not anywhere near where they need to be for everyday reps (5.4 BB%, 36.4 K%). Both numbers need to see significant positive regression. The good news is, Riley looked the part in spring training, where signs pointed to Riley being able to make the necessary adjustments.

Third base is a loaded position for Atlanta – in terms of poignancy – and Riley has big shoes to fill. Putting aside the big picture pressure of manning the spot once belonging to the legendary Chipper Jones, even recent history has set a high bar for Riley. Last season, Josh Donaldson returned to All-Star form with a .259/.379/.521 line, 37 rainmaking bombs, 96 runs, 94 RBIs, 132 wRC+, good for 4.9 fWAR/6.0 rWAR. Good luck replicating those numbers out the gate.

Elsewhere in the NL East, another legend moved westward after a memorable 2019. Anthony Rendon gave the Nationals seven underrated seasons at the hot corner before joining the Los Angeles Angels this winter. We could talk all day about Rendon’s performance this postseason, but those in Washington, Rendon-as-superstar was old hat: He’s been a 6+ fWAR performer for three seasons running. Beyond his consistency, there’s simply no replacing the slow-heartbeat clutch-hitting Rendon provided the Nats on their World Series run – but someone is going to have to try.

Enter Carter Kieboom. Rendon’s nominal heir apparent – at 22-years-old – is about half a year younger than Riley, and he comes sporting a shinier prospect pedigree. He’s the 21st ranked prospect overall by MLB.com and Fangraphs, while Baseball America puts him as the 15th overall prospect (admittedly, Riley wasn’t far off, topping out as Baseball America’s 22nd ranked prospect before last season).

Much like Riley, Kieboom’s role at the outset of whatever season comes next is TBD. There’s an even greater chance the Nats roll with veterans Starlin Castro, Howie Kendrick and Asdrubal Cabrera sharing at-bats between third and second. At least, that was the plan had the season begun on time. Depending on how live baseball in the pipeline shakes out, the Nats might prefer Kieboom break camp with the team just to ensure he’s continuing his development via live baseball. With a potential DH in play, there may even be enough at-bats for the Nats to accommodate playing time for Kieboom and their veteran triumvirate.

Also like Riley, Kieboom wasn’t overly impressive in his first taste of big-league action. Apologists have plenty of cause to support Kieboom even after hitting just .128/.209/.282 over an 11 game stint early in the year (which included 4 errors at shortstop). Reason being: he wasn’t ready. Kieboom’s April promotion was a case of injury-depleted desperation. The Nats were in a bind with Trea Turner on the shelf. Wilmer Difo wasn’t getting the job done as Turner’s understudy, and the Nats were off to a slow start (11-12 at the time of his debut).

The small sample hasn’t done much to lessen the optimism over Kieboom’s potential, especially after he raked for a line of .303/.409/.493 for Triple-A Fresno. The shortstop-by-nature has a long-term future at third or second in Washington, though the suggestion has been that his power will play enough to handle third, and the Nats’ other top young bat has spent most of his career at second (Luis Garcia).

Riley is about a half-season ahead of Keiboom’s trajectory, giving us more familiarity with his game at the pro level. But for comparison’s sake, Riley hit .293/.366/.626 in 44 games at Triple-A in 2019. They’re both former first-rounders (Riley #41 overall in 2015, Kieboom #28 overall in 2016), but their draft status won’t help as each looks to fill the shoes of franchise legends.

And yet, they’re not the same. Riley is a hulking light-breaker who’s defensively playing up to stick at third base. His frame is redolent of a young Ryan Zimmerman before Mr. Nat made the move across the diamond to first. Kieboom’s not a small man himself (6’2″, 190 lbs), but some scouts thought he could stick at shortstop, and he brings a contact-oriented approach. He can stroke it to all fields with potential plus power and a track record of taking walks and putting the ball in play. They’re different molds as far as third baseman go, but neither has much leeway as they try to establish themselves in the majors. Not with both the Braves and Nationals looking to contend in a season that could be as short as 50-some games.

Whenever they claim regular roles, Riley and Keiboom will be two exciting young talents to track in the NL East. The Phillies’ Alec Bohm may very well throw his hat into this ring in the very near future as well (feel free to make your case for Bohm in the comments). Bohm is another former first-rounder (third overall in 2018), but he’s spent less time in the minors and is actually older than both Riley and Kieboom. Team conditions aside, let’s say you’ve got a hole at third base and the right to poach one third base prospect. Who do you want? (link to poll for Trade Rumors mobile app users).

How Nats Could Continue Benefiting From Jordan Zimmermann’s Exit

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It’s true that right-hander Jordan Zimmermann has fallen on hard times over the past few years, but it’s indisputable that he’s one of the top starters the Nationals have had since they moved from Montreal to Washington in advance of the 2005 season. A second-round pick two years later, Zimmermann debuted in Washington in 2009, but it took him until 2011 to break out. From then through 2015, Zimmermann logged five straight seasons of 3.0-plus fWAR, went to two All-Star Games, and posted a stingy 3.14 ERA/3.30 FIP with 7.26 K/9 against just 1.69 BB/9 in 971 2/3 innings. In yet another impressive accomplishment, Zimmermann threw the first no-hitter in Nationals history in 2014 (video here).

The year in which Zimmermann fired a no-no against the Marlins proved to be his penultimate season in a Nats uniform. He went on to parlay his success in D.C. into an expensive contract with the Tigers, who signed him for five years and $110MM before 2016. The Nationals haven’t missed him, though, while the Tigers surely wish they wouldn’t have taken such a big-money gamble. Zimmermann has never recorded an ERA below the mid-4.00s in a season in Detroit, where he has registered an overall 5.61 ERA/4.86 FIP through 508 2/3 frames in the first four years of his deal.

Considering how he has performed of late, not only does it look fortunate for the Nationals that they let Zimmermann walk, but doing so has a chance to continue benefiting the franchise for years to come. You see, by issuing Zimmermann a qualifying offer that he rejected, the Nationals received a high pick (No. 28) as compensation in the 2016 draft. They used that selection on on a Georgia-based high school shortstop named Carter Kieboom. There’s now a chance Kieboom will turn into a long-term linchpin at third base as the departed Anthony Rendon’s successor.

Now 22 years old, Kieboom has typically produced quality numbers in the minors – he batted .303/.409/.493 with 16 home runs in 494 plate appearances in his Triple-A debut in 2019 – and has rated among the majors’ highest-regarded prospects over the past couple seasons. In its most recent rankings, Baseball America (subscription link) placed Kieboom No. 1 in Washington’s system and 15th in all of baseball, calling him a potential “weapon” at the top of a lineup in MLB.

Kieboom was anything but a weapon during his first taste of MLB action last season, when he hit .128/.209/.282 in parts of April and May, but his woes only came over a 43-PA, 11-game sample size. The Nationals probably aren’t worried, though it remains to be seen how much of an impact he’ll make this season (let’s say one even happens). Kieboom hardly stood out in spring training, though you can take exhibition results with a grain of salt. Still, if the Nats don’t think Kieboom’s quite ready, they can plug Asdrubal Cabrera and perhaps Howie Kendrick in at the hot corner. Doing so likely wouldn’t stop the Nationals from believing Kieboom could be part of the solution over the long haul, and if he does eventually live up to the hype, it’ll be an added bonus for moving on from Zimmermann.

Photo courtesy of USA Today Sports Images.

Nats Notes: Strasburg, Scherzer, Kieboom

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While there’s no denying that huge money drove Stephen Strasburg’s return to the Nationals, there were some other key elements that informed his decisionmaking this winter. As Britt Ghiroli of The Athletic reports (subscription link), Strasburg actually worked in family-related travel benefits into his negotiations and contract. Those changes will redound to the benefit of other players with the organization. Strasburg also negotiated for year-round access to Nationals Park and access to certain equipment for training.

The whole story provides a nice look at the shy but increasingly assertive Nats’ co-ace. More from D.C. …

  • Strasburg has toiled quietly even under intense scrutiny. Max Scherzer isn’t exactly a trash-talker, but his mound-stalking and glowering certainly represent a challenge to opposing hitters. Both arms, and both personalities, have made the Nats’ pitching staff one of the best in the business for some time now. But for how long? Todd Dybas of NBC Sports Washington looks at the question whether Scherzer could end up inking a new deal with the club. The 35-year-old is presently two high-priced seasons away from a return to the open market. While it’s tough to imagine losing the rare pitcher that has outperformed a mammoth free agent deal, it’s also not an obvious situation for an extension. Scherzer says it’d be up to the team to “drive those conversations” if it wishes. On his side, he says he’s going to “stay in the moment” and not think too hard about the future.
  • The Nats’ hopes for a repeat crown obviously rest on quite a few players. If there’s a clear wild card, it’s probably young infielder Carter Kieboom. MLB.com’s Jessica Camerato checks in on his progress at learning to handle the third base position. The top prospect is accustomed to the left side of the infield, having spent plenty of time at shortstop, but says it’s still an adjustment to move to the hot corner. He’s keeping a steady demeanor and focusing on the big picture, but it’s obvious he’s also receiving something of a trial by fire this spring. Both Kieboom and manager Dave Martinez expressed confidence … and emphasizing the need for loads of reps both in practice and at game speed. “We really believe that he could be our third baseman,” says Martinez.

NL Notes: Kieboom, Harrison, Giants

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Let’s check in on a few roster situations from the National League.

  • The Nationals plan to give Carter Kieboom an opportunity to win the third base job, manager Dave Martinez told reporters (including Todd Dybas of NBC Sports Washington). The 22-year-old is a consensus top prospect coming off a year in which he hit .303/.409/.493 with 16 home runs in 494 plate appearances. Kieboom has played mostly in the middle infield in the minors, but Martinez indicated he’ll be used strictly as a third baseman for the time being. Washington hadn’t previously had room for Kieboom at the hot corner, but the departure of Anthony Rendon and failure to reel in Josh Donaldson created an opening. If Kieboom doesn’t prove ready for everyday playing time on a contender, Asdrúbal Cabrera gives Martinez a fallback option. Starlin Castro is on hand, too, but it seems Washington will keep him at second base full-time, relays Sam Fortier of the Washington Post.
  • Marlins’ outfield prospect Monte Harrison has an opportunity to win a spot on Miami’s season-opening roster, relays Joe Frisaro of MLB.com as part of a reader mailbag. Harrison, one of Miami’s top prospects, slashed a solid but unspectacular .274/.357/.451 in his first crack at Triple-A last season. Given the continued struggles of Lewis Brinson, who was acquired alongside Harrison in the regrettable Christian Yelich trade, there could be an opportunity for Harrison to claim the center field job. As Frisaro notes, Harrison is already on the Marlins’ 40-man roster, so no further move would be necessary.
  • Mike Yastrzemski seems likely to get the first crack at the center field job for the Giants, relays Alex Pavlovic of NBC Sports Bay Area. That could give an opportunity for prospect Jaylin Davis, acquired last summer from the Twins, to stake a claim to a corner outfield spot. Yastrzemski was quite good for San Francisco in 2019, slashing .272/.334/.518 (121 wRC+) while serving primarily in the corner outfield, although he did start a pair of games in center. It’s an open question whether he can sustain that level of offensive production, considering he was previously an unheralded 28-year-old rookie. Steven Duggar’s also on hand and is a more natural fit in center defensively, but Pavlovic notes that he’s unlikely to have an everyday role. That’s not surprising, as Duggar owns a woeful .241/.286/.358 line (72 wRC+) over the past two seasons.

MLBTR Polls: Washington Nationals’ Recent Additions

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The defending champion Washington Nationals began their offseason in a holding pattern, awaiting the fates of two of their brightest stars: Anthony Rendon and Stephen Strasburg. What shook out couldn’t have been more on-brand for the pitching-focused Nats. Strasburg re-upped with the only professional organization he’s known, while Rendon joined Mike Trout, Shohei Ohtani, and Joe Maddon on an Angels’ team frontrunning for Best Smiles in the AL West, if not the division crown.

Following those twining, superstar sagas, the Nats embarked on a period of relative calm throughout much of December. While waiting in the hallway with the Twins and Braves for Josh Donaldson to make his final contract demands, Nats’ GM Mike Rizzo contented himself with bringing back as much of the championship gang as he could manage. Living legend Howie Kendrick will be back for three-to-five starts per week somewhere in the infield, Yan Gomes returns to block Patrick Corbin sliders and share in the catching duties with Kurt Suzuki, and even mid-season bullpen stabilizer Javy Guerra will get another crack to stick in the bullpen on a minor league deal. Ryan Zimmerman continues to wait in the shadows, certain to re-sign at some point, though how regularly Mr. National will see the field in 2020 is entirely unclear.

This week, however, the Nats grew tired of waiting for Donaldson and moved to add a trio of free agents. Asdrubal Cabrera is the most familiar new/old face. The man most-often charged with protecting Juan Soto in the lineup during 2019’s second half returns to Washington on a one-year, $2.5MM guarantee. Cabrera put up insane numbers in August and September for the Nats (.323/.404/.565). While he bonded nicely with the club in his second stint in the District, the Nats’ can hardly expect Cabrera to put up anything close to the Rendonian line he boasted over the season’s final two months. Somewhere between Kendrick, (presumably) Zimmerman, and top prospect Carter Kieboom, Cabrera represents a capable option to gather loose change at-bats between first, second, and third base.

But the Nationals added a rival to that infield mix as well, inking Starlin Castro to a somewhat surprising two-year, $12MM deal. Ten years into his big league career, Castro turns just 30-years-old in March while carrying an uninspiring .280/.319/.414 career line. The Nats plan to let Castro have second base until Kieboom or somebody else takes it from him, and while he fits an organization ethos that trusts veteran contributors more than the average big league team, it’s hard to get too excited about a guy whose only real elite skill has been volume. He doesn’t strike out a ton, but he won’t take walks, and neither his speed nor power elicit much awe.

Castro did absolutely rip left-handed pitching in 2019, and in the right light, Castro’s home/road, left/right and 1sthalf/2ndhalf splits can all point to a player who deserves more credit than I’m giving him. For instance, he hit .302/.334/.558 in the second half and .286/.332/.447 away from Marlins Park. Together, Cabrera and Castro give the Nats two relatively similar players whose contributions will have to be monitored, like your favorite sublet, on a month-to-month basis.

Perhaps the most unassailable move made in this past week, funny enough, is the addition of spin-rate-savant Will Harris. Nats’ fans no doubt already hold a fondness for Harris after he surrendered the World Series winning home run to Kendrick late in game seven. Years of playoff disappointment prior to 2019 should have those in the District well-prepared to look beyond the volatility of playoff results and appreciate Harris for what he is: one of the best relievers in the league. After all, Astros’ manager AJ Hinch is hardly a doofus, and quibble if you will about his decision to let $324MM man Gerrit Cole languish away in the bullpen while Harris and Kendrick put the foul pole to work – but his decision to pitch Harris in that moment was entirely defensible. That he wanted Harris on the hill should further brighten the hearts of Nats’ fans, even if the three-year, $24MM deal given him at age-35 might cause some seat-squirming. Still, this is a guy with a 2.36 ERA/2.99 FIP over the last five seasons, and he insures the Nats’ bullpen against further wear-and-tear on Sean Doolittle or stagnation from hard-throwing righty Tanner Rainey.

Donaldson could still find himself suiting up next to Trea Turner on the left side of the Nats’ infield, but Rizzo has historically stuck to his number with position players, and if Donaldson’s demands have stretched beyond his comfortability, don’t expect the disciplined Rizzo to panic. Cabrera, Castro and Harris may not be the cavalry Nats’ fans expected to ride in to defend their first ever championship, but they’re here to help all the same. The question is, do they?

(Poll link for app users)

(Poll link for app users)

(Poll link for app users)

Nationals Interested In Shane Greene, Sam Dyson

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Nationals general manager Mike Rizzo said Friday the club’s going into the July 31 trade deadline seeking controllable talent, especially in the bullpen. Already connected to relievers Mychal Givens and Jake Diekman so far this month, a couple more late-game arms are now on the Nationals’ radar. The club is interested in Tigers closer Shane Greene and Giants setup man Sam Dyson, Ken Rosenthal of The Athletic reports.

Not only are Greene and Dyson thriving in 2019, but they’re under wraps via the arbitration process through next season. Greene’s currently on a $4MM salary, while Dyson is making $5MM. There’s plenty of value in both cases, but if acquiring either would force the Nationals to give up prized shortstop prospect Carter Kieboom, it’s not going to happen. The Nats haven’t been willing to include Kieboom “in any deal,” according to Jamal Collier of MLB.com, and the Tigers were unsurprisingly turned down when they asked for Kieboom in exchange for Greene.

Widely regarded as one of the game’s premier prospects, the 21-year-old Kieboom would indeed be a big ask for a year-plus of a reliever, even though the Nationals are desperate for bullpen help. Despite having been weighed down by one of the majors’ worst relief groups from the get-go this year, the Nationals have gotten off to a 51-45 start and hold a one-game lead over the NL’s No. 1 wild-card spot.

With the Giants also in contention (they’re just 3 1/2 back of the Nats), acquiring Dyson could be difficult for Washington. Regardless, based on his performance this season, the 31-year-old Dyson would be an enormous get for the Nats’ relief corps. The right-hander has logged a sterling 2.68 ERA/2.67 FIP with 8.81 K/9, 1.15 BB/9 and a 55.1 percent groundball rate over 47 innings.

The 30-year-old Greene, also a righty, has put up similarly impressive numbers this season as the Tigers’ closer. Not only has Greene saved 22 of 24 chances, but he has recorded an eye-popping 1.03 ERA across 35 frames. Like Dyson, Greene’s strikeout, walk and grounder numbers are terrific. He has fanned 9.51 and walked 2.57 batters per nine, adding a 53.9 percent grounder mark for good measure. As we noted earlier this week, there’s quite a bit of good fortune baked into Greene’s output, but he has nonetheless impressed in 2019. And unlike San Francisco, Detroit’s way out of contention, making it almost a lock the Tigers will deal Greene by the deadline.

NL East Notes: d’Arnaud, Anderson, Kieboom

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The Mets’ decision to cut Travis d’Arnaud so early in the season calls into question the decision to ever tender him a contract in the first place, Joel Sherman of the New York Post opines in a lengthy look at the process. The team’s stance is that it has spent the past two months — Spring Training included — evaluating d’Arnaud, though he’s received only 25 big league plate appearances in part due to a stint on the IL. General manager Brodie Van Wagenen simply stated a belief that Tomas Nido, recalled to replace d’Arnaud, “makes us better.” The defensive-minded Nido does give the team a glove-first backup to a more bat-first primary catcher in Wilson Ramos, though that much was always apparent — even from the time the Mets tendered d’Arnaud a $3.52MM contract while he worked his way back from Tommy John surgery. Van Wagenen asserted that he has no regrets about tendering d’Arnaud and added that he couldn’t let “a few dollars shortchange” the team or d’Arnaud from an opportunity to get a look at him this season, though as Sherman points out, those “few dollars” seem all the more costly given ownership’s track record of spending at a lesser level than one would expect from a team in the game’s largest market. More broadly, the column looks at whether d’Arnaud was a scapegoat of sorts and whether any reactionary moves might follow.

More out of the NL East…

  • Just a month into the season, the Marlins have “at least temporarily” moved Brian Anderson from third base back to right field, Jordan McPherson of the Miami Sun-Sentinel reports. The organization’s stance heading into the season was that Anderson would move back to his natural position, but manager Don Mattingly acknowledged that right field “turned into kind of a mess,” thus prompting the switch. Miami entered the season hoping that a combination of Garrett Cooper, Peter O’Brien, Austin Dean and Rosell Herrera could hold down the fort in right, however, so it’s hardly a surprise that the club ran into troubles there. The 28-year-old,  6’6″, 230-pound Cooper entered the season with all of 125 professional innings in right field and profiles better at first base, while O’Brien (also 28) is years removed from being an interesting power prospect with substantial defensive question marks. Mattingly wouldn’t comment on how long Anderson will be in the outfield, but the lack of solid in-house alternatives suggests that Anderson’s full-time move back to the hot corner won’t be anything close to “full-time” after all.
  • Jesse Dougherty of the Washington Post looks at the timing of Carter Kieboom’s promotion in an attempt to determine what prompted the Nationals to make the move when they did. While Kieboom’s promotion ensures that he won’t be able to tally the 172 days of MLB service needed to reach one full year of service, Dougherty points out that service time considerations haven’t been a factor in the past when the Nats promoted star prospects like Bryce Harper, Victor Robles and Juan Soto. Rather, he speculates that perhaps Trea Turner’s timeline is closer to the eight-week time period than originally hoped, and the lack of offense from shortstop proved glaring. As for what’ll become of Kieboom, who has already homered twice, when Turner returns from his broken index finger, GM Mike Rizzo didn’t out keeping the 21-year-old Kieboom around. While Rizzo stated that Turner would return to shortstop once healed, he also indicated that the club could find a way to keep Kieboom on the big league roster at that point. The Nats kept Soto at the MLB level last year when he was initially promoted as an injury replacement, so there’s some recent precedent for that type of path. Turner is also still weeks away from a return, and it’s possible that other injuries on the roster will create a clearer opening for Kieboom to stick at the big league level even with Turner at shortstop.

Nationals Promote Carter Kieboom

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April 26: The Nats have formally announced the move. Righty Koda Glover was transferred from the 10-day injured list to the 60-day injured list to open a spot on the 40-man roster.

April 25, 5:59pm: Infielder Jake Noll is in the lineup for the Nationals’ Triple-A affiliate tonight, indicating that he’ll be a corresponding 25-man roster move. The Nats will still need to clear a 40-man roster spot for Kieboom.

4:52pm: The Nationals will promote top infield prospect Carter Kieboom prior to Friday’s series opener against the Padres, reports Jesse Dougherty of the Washington Post. Kieboom, a top 50 league-wide prospect in the eyes of Baseball America, MLB.com, Baseball Prospectus, Fangraphs and ESPN, is not on the Nationals’ 40-man roster. A corresponding move to fit him onto the roster will be necessary.

Carter Kieboom | Mark J. Rebilas-USA TODAY Sports

Kieboom, 21, was Washington’s top pick (No. 28 overall) in the 2016 draft. He’s hit at every level throughout his quick ascension to the big leagues, though the torrid start he’s enjoyed thus far in his first exposure to Triple-A pitching is his best work yet. Through 83 plate appearances, Kieboom has crushed opponents with a .379/.506/.636 batting line, three homers, six doubles and a triple. Since being drafted, Kieboom is a combined .286/.373/.471 hitter across all levels at which he’s played — despite the fact that he has consistently been hitting against older, more experienced pitchers.

The exact manner in which the Nationals will utilize Kieboom is not yet clear, but it stands to reason that if the Nats are calling him up this early, the plan is for him to get regular at-bats. Kieboom is a shortstop by trade but has split his time between both middle-infield positions this season. The Nats are without Trea Turner for what figures to be another couple of weeks and have been starting the light-hitting Wilmer Difo in his place, but third baseman Anthony Rendon has also been banged up and out of the lineup for a few days. Offseason signee Brian Dozier has yet to hit much, but he’ll presumably be given a longer leash to get things right.

Though the Nationals’ infield is crowded with veterans when at full strength, they’ve shown a willingness to promote prospects early in the past and carry them for the duration of the season — as was the case with Rookie of the Year runner-up Juan Soto last season. Kieboom has a long way to go before forcing the organization’s hand in that same manner, but if he’s up in the big leagues for good, the Nationals would be able to control him through the end of the 2025 season (though he’d be a slam dunk Super Two player in arbitration).

NL East Notes: Mike Fast, Braves, Nationals,

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Analytics guru Mike Fast joined the Atlanta Braves organization this Wednesday, he announced via Twitter. Fast was formerly the director of research and development in Houston before leaving the organization in late September. The former semiconductor engineer will serve as a special assistant to GM Alex Anthopoulous, who has made it a priority to improve the Braves’ analytics department ever since his hiring in November of 2017, writes the Athletic’s David O’Brien. Per Anthopolous himself, Fast will be part of Atlanta’s senior leadership team, giving his input into all areas of baseball operations. Now, some other rumblings from around the NL East…

  • Right field and catcher clearly require the attention of the Braves’ front office this winter, where current free agents Kurt Suzuki and newly-minted Silver Slugger Nick Markakis have left holes, but improving the bench is not much further down their winter checklist, writes Gabriel Burns of the Atlanta Journal-Constitution. Versatile defender Charlie Culberson was a bright spot for the bench unit in 2018, but they could use a power bat to fill the spot once occupied by Matt Adams (and most recently by current free agent Lucas Duda). Outfielder Adam Duvall was acquired from the Reds last season in part to fill that role, but he struggled mightily in his 33 games as a Brave. Duvall projects to earn $3.1MM his first time through arbitration this winter, which makes him a likely non-tender candidate. He is a career .230/.291/.454 hitter. Still, while GM Alex Anthopoulos said they will be more “open-minded” about spending significant dollars on the bench this season, that’s not a development likely to happen early in the free agent season.
  • The Nationals do not see upgrading at second base as a priority this offseason, per Jesse Dougherty of the Washington Post. Earlier this week Dougherty tweeted that the Nats were comfortable going into next season with Howie Kendrick and Wilmer Difo manning the keystone. Still, it’s a bit surprising given Kendrick is coming off a ruptured achilles, and Difo hardly looked the part of a starter last season when he hit only .230/.298/.350 in 456 plate appearances. Interestingly, Rizzo cites the organization’s depth, specifically prospects Carter Kieboom and Luis Garcia as reasons for their optimism about the position moving forward. Rizzo’s comments are interesting because it means the Nationals are presumably comfortable keeping Trea Turner at shortstop for the foreseeable future. Further, Washington may view Kieboom and/or Garcia to be closer to the majors than it might otherwise appear. Garcia spent the 2018 season between Single-A Hagerstown and High-A Potomac, though he won’t even turn 19 until May. The 21-year-old Kieboom is the more likely of the two to make a surprise jump to the bigs (a la Juan Soto), as he played the final 62 games of 2018 at Double-A Harrisburg, hitting .262/.326/.395. The Nationals have, however, reportedly expressed some interest in Josh Harrison, though the former Pirates utilityman could back up multiple positions around the diamond.
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