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White Sox, Brewers Swap Aaron Civale, Andrew Vaughn

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The White Sox acquired right-hander Aaron Civale and cash considerations from Milwaukee for first baseman Andrew Vaughn. The Brewers optioned Vaughn to Triple-A Nashville, while Civale will step directly into Chicago’s rotation. The Brewers are reportedly sending cash to offset the difference in remaining salary between Civale’s $8MM sum and Vaughn’s $5.85MM figure.

It’s a quick turnaround after Civale requested a trade away from Milwaukee on Thursday. Civale’s trade request came on the heels of the club’s decision earlier this week to bump him from the rotation in order to call up top pitching prospect Jacob Misiorowski. Civale, a free agent after the 2025 campaign who struggled a bit last year but has pitched to a 3.32 ERA and 3.92 FIP in four starts since returning from the injured list last month, evidently wants to hold onto a rotation job to set himself up for success in free agency this winter as much as possible.

The 30-year-old’s wish was promptly granted, as he’s now headed for the White Sox. The South Siders have no real hope of competing for a playoff spot this year, but with a patchwork rotation that features multiple Rule 5 draftees it’s not hard to see Civale as a potentially substantial upgrade for their starting rotation. While a team headed for their second-consecutive 100-loss campaign acquiring a rental starting pitcher in the middle of the season is a rare occurrence, one can see the logic from Chicago’s perspective given that they’ll have the opportunity to flip Civale to a club with postseason aspirations closer to the trade deadline.

The logic is particularly sound for the White Sox given the player they’re giving up in return. Vaughn was the third-overall pick in the 2019 draft and a longtime top 100 prospect, but his major league career has been a disappointment so far. He entered the 2025 season with a career .253/.310/.415 (102 wRC+) slash line at the major league level and has had just one season where he had hit at a clip substantially better than league average. Things took a more pronounced nosedive this year, as he’s slashed just .189/.218/.314 (44 wRC+) across 48 games for the White Sox in 2025. It’s the lowest on-base percentage of any player with at least 120 plate appearances in the majors this year, and his -1.3 fWAR this season is dead last among all hitters who have stepped up to the plate in the majors this season. The Sox optioned him to Triple-A Charlotte a few weeks ago and he has hit .211/.328/.351 in 15 games for the Knights since then.

That’s not a player the White Sox could expect to get a substantial prospect return for this summer, and while Vaughn has one year of control remaining after this one he currently has the look of a clear non-tender candidate. That surely made the opportunity to roll the dice on flipping a veteran starting pitcher a very attractive option for Chicago.

With all that being said, it’s not as though the deal doesn’t make sense for the Brewers. Civale no longer fit in an increasingly deep Brewers rotation mix, and his roster spot is likely better used on other arms more suited for bullpen duty than a veteran starter with zero career relief appearances. What’s more, Vaughn’s underlying numbers paint the picture of a player whose actual performance isn’t all that different from his previous seasons as a league average hitter. While he’s walking at a career-low 3.6% clip, he was never an especially patient hitter. His 22.3% strikeout rate is only a tick higher than last year, and his 13.3% barrel rate this season is actually the best of his career and four points better than last season. Vaughn’s ghastly .217 BABIP should improve with time, and with incumbent first baseman Rhys Hoskins likely ticketed for free agency this winter getting Vaughn on board as a much cheaper possible replacement makes sense.

In the shorter term, Vaughn will serve as minor league depth. The Brewers reportedly view him as a full-time first baseman/DH even though he has experience in the outfield.

Jon Heyman of The New York Post first reported that Milwaukee was trading Civale to the White Sox. Jesse Rogers of ESPN reported that Vaughn was headed back to the Brewers. Adam McCalvy of MLB.com reported the cash exchange.

Astros To Select Luis Guillorme

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The Astros will select infielder Luis Guillorme onto the MLB roster tomorrow, reports Chandler Rome of The Athletic. Houston has an open 40-man roster spot after designating Forrest Whitley for assignment and trading him to Tampa Bay. They’ll need to make an active roster move.

Guillorme has spent the entire season at Triple-A Sugar Land on a minor league contract. The lefty-hitting infielder owns a .245/.376/.310 line across 242 plate appearances. He has walked in 17% of his trips against a 19% strikeout rate, but he only has a pair of home runs. That’s in line with Guillorme’s track record. He’s a patient hitter with good contact skills and bottom-of-the-scale power.

A career .251/.336/.322 hitter over parts of seven MLB seasons, Guillorme is valued most highly for his defense. He has ample experience at each of the three infield spots to the left of first base. He hasn’t played much shortstop this year in the minors, though he won’t be needed there in the majors either because of Jeremy Peña. Guillorme can push Brendan Rodgers for playing time at the keystone while offering short-term insurance as Isaac Paredes navigates an injury.

Paredes left last night’s game with left hamstring discomfort. He didn’t play tonight; Mauricio Dubón drew into the lineup at the hot corner. Manager Joe Espada told the Houston beat that Paredes has been diagnosed with a strain but it’s seemingly mild, as he added that the team believes the infielder will avoid the injured list (relayed by Brian McTaggart of MLB.com).

The corresponding active roster move may be an IL stint for rookie outfielder Jacob Melton. The 24-year-old sprained his right ankle during tonight’s game, Espada said. Houston will have Jose Altuve, Jake Meyers and Cam Smith as their starting outfield but may need to use Dubón more often as a fourth outfielder with Melton out.

A.J. Puk Halts Throwing Program With Elbow Discomfort

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Diamondbacks reliever A.J. Puk has paused his throwing program after experiencing renewed elbow soreness, manager Torey Lovullo told reporters on Friday (link via Nick Piecoro of The Arizona Republic). Puk will visit Dr. Neal ElAttrache before deciding on next steps. Lovullo called it “slight discomfort” and noted that the star southpaw initially hoped he could continue throwing through it.

Puk has been out since the middle of April with a flexor strain. The organization has remained hopeful that he’ll be able to rehab the injury without requiring surgery. That’s presumably still the case, but any kind of setback for a forearm/elbow injury is worrisome. That’s especially true considering Puk has a 2018 Tommy John surgery on his medical chart. Even if the follow-up visit goes well, the shutdown will push back his return timeline to some extent.

It’s the latest bad news for a reeling Arizona bullpen. Puk and Justin Martinez were supposed to serve as Lovullo’s 1-2 punch in the late innings. Puk made eight appearances before his IL stay. Martinez got into 17 games and suffered an elbow injury of his own last week. That one immediately proved serious, and the team announced this evening that he’s headed for the second elbow surgery of his career.

Arizona’s bullpen has been a huge weakness. They entered play tonight with a 5.21 earned run average that ranks 27th in MLB. The injuries to Puk and Martinez are the biggest factors, but they’ve also seen former key contributors Ryan Thompson and Kevin Ginkel struggle through rough years. Low-cost acquisitions Shelby Miller and Jalen Beeks have been their most reliable relievers. The D-Backs will need to acquire multiple bullpen arms if they’re in position to add at the deadline.

Mariners Select Zach Pop

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The Mariners announced they’ve selected righty reliever Zach Pop onto the big league roster. Rookie starter Logan Evans was optioned back to Triple-A Tacoma to create an active roster spot. Seattle had two openings on the 40-man roster.

Pop will make his team debut whenever he gets into a game. He joined Seattle in mid-April on a minor league deal. That came after he was released by the Blue Jays. Pop was battling elbow inflammation at the time, but he got back on the mound by the middle of May. He made two rehab appearances in the complex league before reporting to Tacoma. Pop has made 11 appearances and tossed 9 2/3 innings, allowing seven runs (though only three were earned). He has fanned nine against five walks.

The 28-year-old Pop has pitched in parts of four MLB seasons. He threw 48 1/3 frames for the Jays last season, working to a 5.59 ERA with a well below-average 15.8% strikeout percentage. Pop doesn’t have huge swing-and-miss stuff, but he sits around 96 MPH with his sinker and has posted a gaudy 55% ground-ball rate in his career. He’ll add a grounder specialist to Dan Wilson’s middle relief corps for the time being. He’s out of minor league options, though, so the M’s would need to designate him for assignment to take him off the big league roster.

Seattle can operate with an extra reliever for this weekend’s series against the Guardians. Luis Castillo, George Kirby and Emerson Hancock are lined up to start those games. Adam Jude of The Seattle Times writes that Logan Gilbert is expected to return from the injured list during next week’s series against the Red Sox, at which point Seattle will go back to five starters and an eight-man bullpen. Gilbert has been down since late April with a flexor strain. He has made a trio of rehab starts with Tacoma, combining for 9 2/3 innings of three-run ball.

Jose Urena Elects Free Agency

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Veteran righty José Ureña elected free agency, according to the MLB.com transaction log. He evidently went unclaimed on waivers after being designated for assignment by the Dodgers on Tuesday.

Ureña made two appearances after signing with L.A. on June 3. He tossed three innings of one-run ball, recording two strikeouts with one walk. Ureña has now suited up for three MLB teams this season. He has also logged time with the Mets and Blue Jays, managing 18 1/3 innings over a combined nine appearances. Ureña has punched out 10 against five walks while recording a 5.40 earned run average in that time.

The 33-year-old righty will again look for an opportunity to pitch in a swing capacity. While he has bounced around this year, Ureña held a spot on the Texas pitching staff throughout the ’24 season. He posted a 3.80 ERA while getting ground-balls at a 50% clip in 109 innings for the Rangers. Ureña has never had good strikeout and walk numbers, but his sinker averages 96-97 MPH and he’s capable of covering multiple innings.

Justin Martínez To Undergo Tommy John Surgery

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Diamondbacks right-hander Justin Martínez will undergo Tommy John surgery. Arizona manager Torey Lovullo relayed the info today, per John Gambadoro of Arizona Sports 98.7 FM Phoenix. He’ll miss the remainder of this season and a decent chunk of 2026 as well. He is already on the 15-day injured list but will be transferred to the 60-day IL once the club needs to open a roster spot.

The news is devastating but not especially surprising. Earlier this week, Martínez landed on the IL and the Diamondbacks announced his injury as a sprain of his right ulnar collateral ligament. A sprain, by definition, involves some degree of stretching or tearing. Not all UCL sprains lead to surgery but many do.

Now that Martínez will go under the knife, he’ll be out of action for a long time. The surgery usually takes 14 to 18 months of recovery, so he’ll certainly out for the rest of this season. A return in the second half of 2026 is possible but not a guarantee.

That’s a huge blow for the Arizona bullpen. Martínez broke out last year with 72 2/3 innings with a 2.48 earned run average. His 11.7% walk rate was a bit high but he punched out 29.5% of batters faced and got opponents to pound 58.9% of balls in play into the ground.

Coming into 2025, he and A.J. Puk were supposed to be the anchors of the bullpen. The Snakes even gave Martínez a five-year, $18MM extension to cement him as part of the long-term plans. But Martínez has been on and off the IL this year, first due to shoulder inflammation and now this UCL injury. Puk has also been on the IL for almost two months now due to elbow inflammation.

Naturally, missing those two has hampered the bullpen. Arizona relievers have a collective 5.21 ERA this year, which is better than just the Angels, Nationals and Athletics. The club is 34-34 on the year, 4.5 games back of a playoff spot. Puk could be back at some point later in the year but they will have to try to survive without Martínez. If they hang in the race long enough to be buyers, then adding bullpen help at the deadline would make plenty of sense.

For the team, there is one silver lining. The extension they signed with Martínez contained two club options for 2030 and 2031, followed by a conditional club option for 2032. That conditional option would be worth $3MM and would be unlocked if Martínez required elbow surgery or spent a certain number of days on the injured list during the course of the deal. Now that he is going under the knife, that option will be officially available to them.

That’s assuming Martínez can get back on the mound and return to his previous form, which would prompt the Snakes to pick up those club options. Though Tommy John surgeries are quite common, not all pitchers can get 100% effectiveness back afterwards. Martínez is also undergoing the procedure for a second time, which adds to the risk. He first went under the knife as a prospect in 2021.

Photo courtesy of Rick Scuteri, Imagn Images

White Sox Claim Ryan Noda, Designate Joshua Palacios For Assignment

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The White Sox announced that they have claimed first baseman Ryan Noda off waivers from the Red Sox and optioned him to Triple-A Charlotte. Boston had designated him for assignment a few days ago. Outfielder Joshua Palacios has been designated for assignment to open a 40-man spot. Infielder Brooks Baldwin has been recalled to take the active roster spot of Palacios. There was also a swap on the pitching side, with left-hander Tyler Gilbert reinstated from the injured list and righty Owen White optioned as the corresponding move.

Noda, 29, has an extreme profile. He strikes out a lot but also draws plenty of walks and has some pop. He has done that all throughout his minor league career and then showed it at the big league level in 2023 after the A’s grabbed him from the Dodgers in the Rule 5 draft. He got into 128 games and stepped to the plate 495 times. He struck out in 34.3% of those plate appearances but also walked at a massive 15.6% clip and hit 16 home runs. That all added up to a .229/.364/.406 line and 122 wRC+.

Last year, he got out to a rough start and ended up getting optioned to the minors for most of the year. The A’s put him on waivers at the end of the season, with the Angels putting in a claim. He was designated for assignment about a month ago and got flipped to the Red Sox in a cash deal. Both the Angels and the Red Sox kept him on optional assignment.

His minor league numbers have continued along with Noda’s usual style. Dating back to the start of last year, he has 655 Triple-A plate appearances with 29 homers, a 20.2% walk rate and a 30.4% strikeout rate.

The White Sox came into this year with Andrew Vaughn as their primary first baseman. He struggled badly enough to get optioned to the minors a few weeks back. Earlier today, the Sox flipped him to the Brewers for Aaron Civale and cash. Tim Elko has been getting a lot of the playing time at first lately but is hitting .155/.222/.379. If that continues, perhaps the Sox will make a switch.

Palacios, 29, signed a minor league deal and then was added to the roster in April. He has 145 plate appearances so far this year with a .203/.292/.305 line. That now gives him a career .223/.287/.349 batting line and 75 wRC+.

Since he’s out of options, he can’t be easily sent down to the minors. He’ll now be in DFA limbo, which can last for at most a week. The waiver process takes 48 hours, so the Sox could take five days to try to line up a trade. He cleared waivers back in March and hasn’t done much to improve his stock since then, so the level of interest should be low. If he clears waivers, he will have the right to elect free agency.

Photo courtesy of Rick Scuteri, Imagn Images

Fantasy Baseball: Targeted Streaming for LHPs

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Hello, friends.

Considering we're well past Stabilization Day, let's check in on one of my favorite topics to leverage for fantasy success: team splits. This might not be late-breaking news and/or rocket science but attacking teams via their performances with different splits continues to be one of the easiest ways to guide your streaming decisions.

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Gunnar Hoglund Done For Season Due To Hip Surgery

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4:10pm: The A’s have now announced the surgery, per Jessica Kleinschmidt of Baseball America, saying the Hoglund will indeed miss the rest of this year.

2:05pm: Athletics right-hander Gunnar Hoglund will be undergoing hip surgery today and is likely done for the year. The news was reported by his agent Nate Heisler of Klutch Sports (hat tip to Ari Alexander of KPRC 2). Hoglund is already on the 15-day IL but will be transferred to the 60-day IL once the A’s need to open a 40-man roster spot.

It’s an unfortunate setback for Hoglund, a notable young talent who has been held back by health issues. He required Tommy John surgery in May of 2021 while pitching in college, just a few weeks ahead of that year’s draft. Originally projected to be selected in the top ten picks of the draft, the injury seemingly knocked him down a bit, but the Blue Jays took him with the 19th pick.

Before he was even done rehabbing from that surgery, he was flipped to the A’s as part of the Matt Chapman deal in March of 2022. He was able to get back on the mound that year but only logged eight innings. He got up to 61 innings in 2023, though with a 6.05 earned run average.

Last year was a nice step forward, as he logged 130 2/3 innings on the farm with a 3.44 ERA. His 22.7% strikeout rate and 7% walk rate were both solid numbers. He was added to the club’s 40-man roster to keep him out of the Rule 5 draft.

He started this year back at Triple-A and posted a 2.43 ERA over six starts. That got him called up to make his major league debut. The initial results were shaky, with a 6.40 ERA and 16.5% strikeout rate, but that was a small sample of just six starts and it’s possible his hip injury was already bothering him. He was placed on the IL at the start of June.

Now it’s going to be another extended stretch of injury rehab, which is tough timing on a couple of fronts. As mentioned, he had some momentum from a strong 2024 season, both in terms of the quality and quantity of his work. Now 2025 is going to be a step back.

Also, the A’s are 26-44, below every American League team except the White Sox. That’s exactly the right time for exciting young players like Hoglund to develop at the major league level. Ideally, he could have made 20 or more big league starts over the rest of the campaign, but that won’t happen now. He could get back on track in 2026 but will be coming off a mostly lost season. He’ll collect major league pay and service time while on the IL but will come up short of one year of service time since he wasn’t called up until May.

For the A’s, they will likely proceed through the rest of the season under the assumption that Hoglund won’t be a factor. The current rotation consists of Luis Severino, Jeffrey Springs, JP Sears, Mitch Spence and Jacob Lopez. Guys like Joey Estes and Luis Morales are down in Triple-A, though Estes is on the minor league IL. The major league IL features guys like Ken Waldichuk, J.T. Ginn and Brady Basso, who could be factors after getting healthy.

Photo courtesy of Nick Turchiaro, Imagn Images

Michael Tonkin Accepts Outright Assignment With Twins

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Right-hander Michael Tonkin has cleared outright waivers and accepted an outright assignment to Triple-A St. Paul. He was on the 60-day injured list and pitching on a rehab assignment but it seems the Twins decided not to reinstate him to the roster. He had the right to reject the assignment and elect free agency but has decided to forgo that right. Dan Hayes of The Athletic was among those to relay the information.

Tonkin, 35, has been posting good numbers over the past few years but is out of options. That’s led to plenty of bouncing around the league. He signed with the Mets going into 2024 but ended up going to the Twins, back to the Mets, the Yankees and Twins again throughout the season via waiver claims or small trades. He and the Twins avoided arbitration by agreeing to a $1MM salary for the 2025 campaign.

Unfortunately, he’s been on the shelf for all of this year so far. He was diagnosed with a right rotator cuff strain in March and started the season on the 15-day IL. He was on a rehab assignment from mid-April to mid-May but was pulled off that rehab due to biceps tendinitis. He was transferred to the 60-day IL shortly thereafter. He restarted the rehab assignment about a week ago.

As mentioned, Tonkin is out of options, meaning the Twins would have had to plug him onto the active roster in order to reinstate him from the IL. They went the waiver route instead. Players with more than three years of major league service time have the right to reject an outright assignment and elect free agency. However, players with less than five years of service have to forfeit any remaining salary commitments in order to exercise that right.

Tonkin came into this year with his service clock at four years and 74 days, putting him 98 days shy of the five-year mark. By my count, 78 days have elapsed in the 2025 season so far, putting Tonkin 20 days shy of that line. That means he would have to walk away from what remains to be paid out of his salary in order to head to free agency, making it fairly unsurprising that he has accepted.

That means the Twins get to hang onto an experienced pitcher without him taking up a roster spot. Over the 2023 and 2024 seasons, Tonkin tossed 159 1/3 innings for various clubs with a 3.95 earned run average, 24.1% strikeout rate and 8% walk rate. He’ll keep pitching for the Saints and try to stay ready for his next major league call. If he’s not added back to the roster by season’s end, he would be able to elect free agency, like all players with three-plus years of service who have been outrighted during the season.

Photo courtesy of Rick Osentoski, Imagn Images

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