The Brewers are trading right-hander Aaron Civale to the White Sox, according to a report from Jon Heyman of the New York Post. ESPN’s Jesse Rogers reports that first baseman Andrew Vaughn is headed to Milwaukee in exchange for Civale.
It’s a quick turnaround after Civale requested a trade away from Milwaukee yesterday. 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, it’s not hard to 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 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. 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.
More to come.