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Willie MacIver

Athletics Select Colby Thomas

By Steve Adams | June 30, 2025 at 1:17pm CDT

The Athletics announced a series of roster moves Monday, notably selecting the contract of well-regarded outfield prospect Colby Thomas from Triple-A Las Vegas. The A’s also reinstated Shea Langeliers from the 10-day injured list, recalled reliever Justin Sterner from Vegas and optioned outfielder JJ Bleday, righty Tyler Ferguson and catcher Willie MacIver to Triple-A.

Thomas, 24, was the Athletics’ third-round pick in 2022. He’s steadily climbed the minor league ranks and currently sports a .297/.365/.542 slash with Las Vegas, although given the extraordinarily hitter-friendly setting, that’s only about 11% better than league average (111 wRC+) when adjusted for home park and league run-scoring environment. Thomas’ 26.3% strikeout rate, 7.3% walk rate and massive pop-up rate — a staggering 28% of his fly-balls are infield flies — aren’t ideal, but he’s also hitting plenty of line drives.

Baseball America and MLB.com both list Thomas among the system’s top-five prospects, whereas FanGraphs had Thomas way down at 27th in the system citing concerns over his hit tool and overaggressive approach at the plate. Both BA and MLB raise those flaws as well, but Thomas’ raw tools — above-average to plus grades on his power, speed, outfield defense and arm strength — lead to a more favorable overall rating at both outlets, questions in the batter’s box notwithstanding.

Thomas joins an outfield mix that includes Lawrence Butler in right field, defensive standout Denzel Clarke in center and slugger Tyler Soderstrom in left. Designated hitter Brent Rooker can cycle into the corners as well but has just 202 innings on defense dating back to Opening Day 2024. Thomas’ right-handed bat could serve as a complement to the lefty-swinging Soderstrom, who’s batting just .205/.235/.269 against lefties this year (81 plate appearances) but .268/.367/.485 versus righties.

Langeliers returns after missing nearly four weeks with an oblique strain. He batted .237/.300/.430 with 10 homers in 230 plate appearances prior to the injury, continuing his trend of providing low average/OBP marks with above-average pop.

Ferguson was solid for the A’s in 2024 but has seen his velocity, strikeout rate, swinging-strike rate, walk rate and home run rate all trend in the wrong direction in 2025. He’s currently sitting on a 6.69 ERA in 35 innings.

Last year, Bleday looked to have broken out as a quality hitter and potential core piece with the A’s. His glovework in center field was brutal, but Bleday slashed .243/.324/.437 with 20 homers in 642 plate appearances. He’s drawing tons of walks with slightly above-average power again in 2025, but Bleday’s contact rate, strikeout rate and infield fly rate have all trended the wrong way in ’25. This is now the second time he’s been optioned, and went just 5-for-37 between minor league stints before being sent back down. There’s still room for him to bounce back and reclaim a spot in the Athletics’ long-term plans, but right now his stock is down considerably relative to 2024.

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Oakland Athletics Transactions Colby Thomas J.J. Bleday Justin Sterner Shea Langeliers Tyler Ferguson Willie MacIver

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Athletics Designate Seth Brown For Assignment, Option JJ Bleday

By Darragh McDonald | May 23, 2025 at 4:35pm CDT

The Athletics announced a huge batch of roster moves today. They selected the contracts of catcher Willie MacIver and infielder Logan Davidson. They also recalled left-hander Jacob Lopez, infielder CJ Alexander and outfielder Denzel Clarke. Infielder Gio Urshela was placed on the 10-day injured list with a strained left hamstring, opening one spot. They opened three more by optioning right-hander Carlos Durán, catcher Jhonny Pereda and outfielder JJ Bleday to Triple-A Las Vegas. They opened a fifth active roster spot by designating infielder/outfielder Seth Brown for assignment. That also opened one 40-man spot for MacIver/Davidson. A second was opened by transferring infielder Zack Gelof to the 60-day IL.

The Clarke, Urshela and Davidson moves had been previously reported. Jeff Passan of ESPN reported the Clarke promotion last night and hinted that more moves could be coming, with the A’s looking to shake things up and snap a nine-game losing streak. That has certainly come to pass.

Brown, 32, has been a productive player for the A’s before but has fallen off. He hit 45 home runs between the 2021 and 2022 campaigns, slashing .224/.294/.457 for a 111 wRC+. However, he has a line of .224/.286/.385 and a wRC+ of 90 since then. That includes a .192/.311/.288 line and 79 wRC+ this year.

He was outrighted off the roster last summer but earned his way back to the big leagues. He played well enough in the second half that the A’s tendered him an arbitration contract for 2025 and the two sides avoided arbitration by agreeing to a $2.7MM salary.

Perhaps not coincidentally, Brown is not quite in a position to both elect free agency and keep that money coming to him. Players with at least three years of big league service have the right to reject an outright assignment and elect free agency, but players with less than five years have to forfeit their remaining salary in order to do so. Brown came into this year with four years and 96 days of service time, putting him 76 days shy of the five-year mark. 57 days have passed in the 2025 season so far. Based on his performance, he probably won’t get claimed off waivers. More likely, he will clear and accept an outright assignment, allowing the A’s to keep him around as non-roster depth.

Bleday, 27, seemed to be having a breakout last year. The former top prospect hit 20 home runs and slashed .243/.324/.437 on the year for a 120 wRC+. Defensively, he was miscast as a center fielder but the offensive performance was certainly encouraging. Unfortunately, he is slashing .204/.291/.365 for an 86 wRC+ so far this year.

It’s possible there’s some luck in there. His batting average on balls in play was .279 last year but is down to .231 here in 2025. His barrel rate is down but his average exit velocity and hard hit rate are actually higher than last year. His strikeout rate has ticked up a bit but he’s also been walking more.

Regardless, the A’s are seemingly going to try Clarke in center for a while. Bleday can try to get into a groove in the Pacific Coast League and perhaps return to the big leagues after a bit of a refresher. He came into this season with his service count at 2.055. If he stays down the rest of the year, he won’t get to the three-year mark in 2025, delaying his path to free agency. But if he’s recalled in the not-too-distant future, he’ll still have a shot to get there.

Amid the rest of the shuffle, MacIver gets called to the big leagues for the first time. The A’s have Shea Langeliers as their primary catcher but Pereda has been backing him up lately. With today’s swap, it seems MacIver will get a shot at holding that backup job.

The 28-year-old MacIver was drafted by the Rockies way back in 2018, in the ninth round, and has been grinding in the minors since then. He reached free agency after 2024 and signed a minor league deal with the A’s coming into 2025. He has put up a monster .389/.469/.548 line in 147 Triple-A plate appearances this year. His .480 BABIP is surely not sustainable but his 12.2% walk rate and 18.4% strikeout rate are both good figures.

As for Gelof, he began the season on the 10-day IL due to hamate surgery. He started a rehab assignment at the end of April but that lasted just three games before he was pulled off due to a stress reaction in his ribs. He hasn’t started a new rehab assignment yet. His 60-day count is retroactive to his initial IL placement, so is technically eligible for reinstatement a few days from now. However, that doesn’t seem likely, as he’ll surely need a few weeks of minor league games at some point to get into game shape.

Photo courtesy of Jayne Kamin-Oncea, Imagn Images

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Oakland Athletics Transactions CJ Alexander Carlos Duran Denzel Clarke Giovanny Urshela J.J. Bleday Jacob Lopez Jhonny Pereda Logan Davidson Seth Brown Willie MacIver Zack Gelof

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