Nationals Sign Matt Krook To Major League Deal

The Nationals announced this afternoon that they’ve signed left-hander Matt Krook to a major league deal and activated him. He takes the place of PJ Poulin on the active roster, with Poulin going on the 15-day injured list (retroactive to July 16th) for a left flexor strain. To clear space on the 40-man roster, Richard Lovelady was transferred to the 60-day IL.

It’s a quick reunion for the Nationals and Krook, whom the team designated for assignment on July 12th. Krook cleared waivers and was assigned outright to Triple-A Rochester, which he rejected in favor of free agency. After five days exploring the market, he ultimately returns to Washington as a fresh arm in place of Poulin. He’ll slot in as a low-leverage arm for however long he’s up this time.

Krook, 31, has only thrown 14 2/3 big league innings since debuting in 2023, though he’s actually pretty well-traveled. Originally a fourth-round pick by the Giants in 2016, he’s now with his seventh organization in the Nationals. Krook has considerably more experience at Triple-A, having first reached that level in 2021 while a member of the Yankees. From 2021-26, he’s thrown at least 29 innings at Triple-A in every season, and he’s only posted an ERA over 4.00 once (a 4.09 mark in 138 2/3 innings in 2022). He’s exclusively worked out of the bullpen since the start of 2023.

The profile is that of a Quad-A depth arm. It wouldn’t be surprising to see Krook stick around for a few games, get designated for assignment, then repeat the process of electing free agency and re-signing. For comparison, he only made three appearances for the Nationals between July 4th, when they claimed him from the Athletics, and July 12th, when he was designated.

Poulin heads to the IL in the midst of a polarizing season numbers-wise. On the one hand, he has a 2.70 ERA through 36 2/3 innings, improving on last year’s 3.65 ERA. He also gets grounders at an above-average 46.2% clip. On the other hand, Poulin’s strikeout and walk rates are significantly worse than average, and judging by opposing hitters’ .225 average on balls in play, his true talent is closer to his 5.37 expected ERA than the 2.70 figure. The severity of the flexor strain is not yet clear, but it’s nonetheless a cause for concern given that flexor strains can be precursors to Tommy John surgery. It’s possible the team will provide further information on Poulin’s timeline in the coming days.

Lovelady was acquired by the Nats in a cash trade with the Mets back in April. He’s since tossed 23 innings with a serviceable 3.91 ERA, although his 6.16 xERA suggests he’s been lucky to achieve that. Lovelady had been on the 15-day IL since June 29th with a left triceps strain, and with today’s transfer, he’s now going to be on the shelf until late August at best.

Photo courtesy of Brad Mills, Imagn Images

Nationals Place Jake Irvin On 15-Day Injured List

Prior to today’s game with the Braves, the Nationals announced that right-hander Jake Irvin had been placed on the 15-day injured list due to a strain in his throwing shoulder.  Left-hander PJ Poulin was called up from Triple-A in the corresponding move.

An IL stint seemed inevitable when Irvin left Saturday’s game after five innings and 80 pitches, despite the fact that Irvin still hasn’t allowed a hit against the powerful Atlanta lineup.  An MRI revealed the strain but nothing more serious, and manager Blake Butera told MLB.com’s Rick Farlow and other reporters that Irvin may miss just the minimum 15 days.  Irvin described the diagnosis as the “best news that we could have heard….[I’ll] just attack it with treatment and strengthening and just trying to do whatever we can to get this thing to heal up as quick as possible.”

It’s a sign of Irvin’s bad luck this season that the injury occurred during what was shaping up as the best outing of an otherwise rough 2026.  Irvin has a 5.23 ERA over 11 starts and 51 2/3 innings, but a 3.79 SIERA is perhaps more reflective of his work.  The righty is allowing a lot of hard contact and his 9.6% walk rate is below average, but Irvin is striking out batters at a solid 25.4% rate — easily the best K% of his four MLB seasons.

Washington’s rotation hasn’t been very effective on the whole but they have been durable.  Beyond the starting five of Irvin, Cade Cavalli, Foster Griffin, Zack Littell, and Miles Mikolas, the only other pitchers to make “starts” this season were Poulin and Richard Lovelady, who combined for eight appearances as an opener.

Since the Nats have an off-day on Thursday, Irvin’s spot in the rotation doesn’t need to be addressed until June 2.  The club could obviously have a fill-in starter interrupt the usual rotation order if the other starters are given an extra rest day, or a bullpen day could be scheduled if an actual starter isn’t used to take Irvin’s place.

The Nationals’ Closer Options

The swap of Jose A. Ferrer for Harry Ford brought the Nationals their potential catcher of the future. It also left an already-thin bullpen without a clear closer for the upcoming season. The rebuilding club is unlikely to pursue an impact reliever in free agency. If they make a move, it’ll likely be finding a cheap veteran with closing experience in the hopes of flipping them at the trade deadline after a few months of decent production.

The Nationals ranked dead last in bullpen ERA by a significant margin in 2025. The team was 0.4 runs worse than the next-closest team (Colorado). Washington has been able to rely on Kyle Finnegan for the past few seasons. The righty threaded the needle of being capable of holding down the job, while not being talented enough to leave via trade or free agency. He fell back into the Nats’ lap in late February after garnering minimal interest on the open market. Washington moved him to Detroit at the trade deadline.

The Finnegan trade led to the emergence of Ferrer, who earned 11 saves over the final two months of the season. The hard-throwing lefty’s overall numbers weren’t amazing, but a 3.24 SIERA and a 3.43 xFIP suggested the best was yet to come. Ferrer will now join Seattle’s elite bullpen.

Washington has a new general manager and a first-time skipper. It’s the perfect time to unearth a stud reliever out of a rag-tag mix of arms. So who could the closer-in-waiting be?

Cole Henry

After multiple years as one of the organization’s top pitching prospects, Henry moved to a relief role in 2025. Persistent injury issues kept the 2020 second-round pick from putting it all together as a starter. Henry opened the season in the minors, but was quickly promoted to the big-league club. He slowly worked his way into a high-leverage role. The righty finished the season with 10 holds, which ranked behind only Ferrer. He also notched a pair of saves.

Henry has the fastball to be a closer. The 26-year-old’s four-seamer sits in the mid-90s with well-above-average arm-side movement. The pitch held hitters to a .191 batting average and recorded a +4 Run Value. Henry’s curveball is a decent complement, with its solid whiff rate and tight shape. As a former starter, Henry unsurprisingly used a deep pitch mix, but his sinker, cutter, and changeup were unremarkable. The key will be narrowing down an arsenal he can throw for strikes. Henry had a 13.3% walk rate, which ranked in the second percentile. He posted a miserable 85 Location+.

Clayton Beeter

If the season started today, Beeter would likely draw the 9th-inning assignment. He finished just behind Henry with nine holds and also chipped in a save. Beeter closed the season with a save and five holds over his final seven appearances. Interim manager Miguel Cairo leaned on him when Ferrer faltered down the stretch. He’s another former starter who recently made the move to the bullpen.

Beeter has the strikeout numbers of an elite reliever. After multiple minor league seasons with a strikeout rate above 35%, he’s continued to punch out hitters in the majors. Beeter has a 31.9% strikeout rate across 29 MLB innings over the past two years. It’s a straightforward repertoire, just an upper-90s fastball and a hard slider. Beeter’s slider had a massive 49.1% whiff rate last season. It was responsible for 29 of his 33 strikeouts. Beeter had a 2.97 xFIP with the Nats, so his 2.49 ERA seems somewhat legit. If there’s an internal option who could rack up 15 saves and be on the move in late July, it’s probably Beeter.

PJ Poulin or Konnor Pilkington

Washington only has two left-handed relievers on the 40-man roster, so while Poulin and Pilkington are locked into MLB roles, neither is likely to be reserved for the 9th inning. A free agent addition of the southpaw variety would probably be the only way for one of them to step into the gig. If that happens, there’s a route toward Poulin or Pilkington vying for the job.

Poulin would be a non-traditional pick, even as lefties go. His heater barely cracks 90 mph, and he walks too many hitters for a soft-tosser. But, he did compile a 2.10 ERA across Double-A and Triple-A in Detroit’s system in 2024. He had multiple stops with big strikeout numbers, including a 33.7% strikeout rate with Triple-A Toledo before getting claimed by the Nats.

Pilkington’s velocity jumped up in the Nats’ bullpen compared to his days as a starter with the Guardians. He was sitting above 94 mph as a reliever this past year. Pilkington missed bats at an above-average rate, but walked too many and was barreled too frequently.

Marquis Grissom Jr.

Grissom has steadily worked his way up Washington’s system, reaching Triple-A this past season. While he stumbled with Rochester, there’s enough of a minor league track record to believe Grissom could make an impact with the big-league club. He posted a 2.21 ERA across two minor league levels in 2024. That earned Grissom an invite to MLB Spring Training in 2025. He also played in the Futures Game this past year, where he went up against his dad (who was managing the AL team). Grissom has totaled 27 saves in the minors over the past three seasons. The fact that he isn’t on the 40-man roster hurts his chances, but the club doesn’t have many obvious impact relievers in the minors.

Brad Lord

A team bereft of reliable starters outside of MacKenzie Gore probably can’t afford to keep Lord in the bullpen, though his stuff is enticing there. Lord scooped up seven holds in a hybrid role last season. He was sitting at 96 mph at times as a reliever. Lord put together a two-month stretch from mid-May to mid-July with a 2.70 ERA and a 23.5% strikeout rate over 26 relief appearances. He doesn’t have a clear answer for lefties (which will be a problem as a starter), but the fastball/sinker/slider combo could play with the velocity bump out of the bullpen.

Nationals Activate PJ Poulin For MLB Debut

The Nationals announced today that left-hander PJ Poulin, recently claimed off waivers from the Tigers, has been added to the active roster. He’ll be making his major league debut as soon as he gets into a game. The club also recalled right-hander Clayton Beeter and optioned righties Zach Brzykcy and Ryan Loutos in corresponding moves. TalkNats reported the moves prior to the official announcement.

It’s been a long journey to the big leagues for the lefty Poulin, now 29 years old, who was drafted by the Rockies back in 2018. With that organization, he reached Triple-A in 2022 and pitched at that level in 2023 as well. However, his results weren’t great for the Isotopes. He had a 6.20 earned run average in 69 2/3 innings for Albuquerque over those two seasons.

In March of 2024, the Rockies flipped him to the Tigers for cash. He was sent to Double-A after that trade but worked his way back up to Triple-A by July of 2024. In the year-plus since that promotion, he has thrown 68 2/3 Triple-A innings with a 3.54 ERA, 31.9% strikeout rate, 9.5% walk rate and grounders on about half the balls in play he’s allowed.

The Tigers selected him to their 40-man roster a month ago but immediately optioned him back to Triple-A Toledo. He had an upward mobility clause in his contract and the Tigers didn’t want him to get away. However, they made a number of additions to their roster ahead of the deadline, squeezing Poulin onto the waiver wire.

The Nats gave him a roster spot and could give him a significant big league audition as well. Ahead of the deadline, they sent out Kyle Finnegan, Luis García and Andrew Chafin, opening some bullpen spots. They also moved Brad Lord to the rotation a few weeks ago to replace the injured Trevor Williams. The trade of Michael Soroka opened another rotation spot.

In short, there are a lot of innings to cover down the stretch, so guys like Poulin and Beeter could earn roles on next year’s club by putting up some decent numbers before the offseason. Poulin becomes the fourth lefty in the big league bullpen alongside Jose A. Ferrer, Konnor Pilkington and Shinnosuke Ogasawara.

Photo courtesy of Dave Nelson, Imagn Images

Nationals Claim PJ Poulin

The Nationals announced this afternoon that they’ve claimed left-hander PJ Poulin off waivers from the Tigers. Poulin was designated for assignment to make room for right-hander Charlie Morton on the club’s 40-man roster on the day of the trade deadline.

Poulin, 29, was an 11th-round pick by the Rockies back in 2018. A two-way player in college, Poulin committed to pitching upon his move to affiliated ball. He looked quite good in the lower minors as a reliever in his first two years as a professional, but the canceled minor league season in 2020 lost him a year of development and he generally struggled with his effectiveness in the upper minors during his time with the Rockies organization. He was dealt to the Tigers prior to the 2024 season and has looked quite good since then, with a 2.10 ERA, 2.59 FIP, and 29.8% strikeout rate across the Double- and Triple-A levels last year.

The southpaw returned to Triple-A Toledo this year and has pitched well in 42 2/3 innings of work, with a 3.38 ERA and a fantastic 33.7% strikeout rate against a 9.2% walk rate. Those huge numbers got the attention of the Tigers last month, and led them to add Poulin to the 40-man roster after he exercised an upward mobility clause in his contract. Unfortunately for Poulin, he did not make it to the majors in Detroit before being DFA’d this past week. The good news, however, is that he’s been plucked off the waiver wire by a Nationals team that will be in need of bullpen help down the stretch after parting with key relievers like closer Kyle Finnegan and lefty Andrew Chafin in a sell-off at the deadline.

That should give Poulin a clear shot to make the majors and show what he can do at the big league level at some point down the stretch, and if he impresses the Nationals would have full control over him given that he has not yet made his big league debut and has zero MLB service time. He’ll be competing with players like Konnor Pilkington and Shinnosuke Ogasawara to serve as a left-handed bullpen option for the team now that Jose A. Ferrer is seemingly ticketed for the closer role in Finnegan’s stead.

Tigers Acquire Charlie Morton

The Tigers have acquired right-hander Charlie Morton from the Orioles in exchange for minor league left-hander Micah Ashman. Baltimore will also send cash considerations. To free up space on their 40-man roster, the Tigers designated left-hander PJ Poulin for assignment. Jeff Passan of ESPN was the first to report that Morton was heading to Detroit.

Morton, 41, joins Chris Paddack as the Tigers’ second veteran rotation addition near the trade deadline.  Morton signed a $15MM free agent deal with the Orioles in January, but lost his rotation job after five disastrous starts.  After the Orioles designated Kyle Gibson for assignment on May 18th, Morton returned to the rotation.  He’s been a new pitcher in those 11 starts, posting a 3.88 ERA, 22.7 K%, and 8.9 BB%.

Now Morton joins the first-place Tigers, who are tied for the best record in the American League.  The club’s rotation consists of ace Tarik Skubal, Jack Flaherty, Casey Mize, Paddack, and Morton.  Reese Olson is out for the season with a shoulder strain, while free agent signing Alex Cobb was able to resume his rehab assignment on Tuesday as he recovers from a hip injury.  Rookie Troy Melton, who drew two starts this month, has been moved to the bullpen to accommodate Morton.

It’s unclear how the Tigers would make it work if all six veteran pitchers are healthy, but that’s a good problem to have.  Morton could perhaps serve as the Tigers’ fourth starter in the playoffs.  He has extensive postseason experience, including for manager A.J. Hinch’s 2017-18 Astros.

Perhaps because of the success of his team or a desire to hang on to his best prospects, Tigers president of baseball operations Scott Harris didn’t shoot for the top of the market at the trade deadline.  Aside from adding Morton and Paddack to the rotation, Harris picked up Kyle Finnegan, Rafael Montero, the injured Paul Sewald, and Codi Heuer as bullpen reinforcements.  It was not unlike the club’s offseason, which consisted of modest free agent deals for Flaherty, Cobb, Gleyber Torres, Tommy Kahnle, John Brebbia, Manuel Margot, and Jose Urquidy.

At one point it seemed like the Orioles might move three starting pitchers, but Zach Eflin and Tomoyuki Sugano ended up staying put.  Eflin was placed on the IL today with back discomfort, while Sugano likely didn’t move the needle for teams given his 15.2 K%.  The Orioles still traded Ryan O’Hearn, Ramon Laureano, Ramon Urias, Cedric Mullins, Andrew Kittredge, Seranthony Dominguez, Gregory Soto, and Bryan Baker this month, so it was an incredibly active trade deadline for Mike Elias and company.

Ashman, 22, was drafted in the 11th round by the Tigers last year out of the University of Utah.  The reliever has a 1.49 ERA and 25.5 K-BB% in the minors this year and moved to Double-A earlier this month.  It appears the Tigers are taking on all $4.76MM owed to Morton for the rest of the year, which likely dampened Baltimore’s return.

Tigers Select PJ Poulin

The Tigers announced a pair of roster moves this morning. They’ve selected the contract of left-hander PJ Poulin to the 40-man roster and optioned him to Triple-A Toledo. Left-hander Sean Guenther was recalled from Triple-A and placed on the 60-day injured list to make room for Poulin on the 40-man roster. According to Evan Woodbery of MLive, Poulin had an upward mobility clause in his contract and the Tigers opted to add him to their 40-man roster in order to keep him in their organization.

Poulin, 29 later this month, was an 11th-round pick by the Rockies back in 2018. A two-way player in college, Poulin committed to pitching upon his move to affiliated ball. He looked quite good in the lower minors as a reliever in his first two years as a professional, but the canceled minor league season in 2020 lost him a year of development and he generally struggled with his effectiveness in the upper minors during his time with the Rockies organization.

He was dealt to the Tigers prior to the 2024 season and has looked quite good since then, as he posted a 2.10 ERA in 60 innings between Double- and Triple-A last year before posting a 3.72 ERA in 36 1/3 frames at Triple-A this season. That solid but unspectacular ERA comes with a much more impressive 33.8% strikeout rate, and that kind of strikeout stuff from the left side makes it easy to see why the Tigers decided it was worth it to add the lefty to their 40-man roster rather than risk losing him to another organization.

Making room for Poulin on the 40-man roster is Guenther, who has a 2.30 ERA and 2.73 FIP across 31 1/3 innings of work with the Tigers over the past two seasons. Guenther was on the shelf in the minors after undergoing hip surgery last week, meaning that the move to place him on the 60-day IL is largely a procedural one. With that being said, it does come with the side effect of allowing him to collect a big league salary and earn MLB service time until he’s activated and optioned back to the minor leagues.