Astros Interested In Willi Castro

The Astros’ desire to add some left-handed balance to their righty-heavy lineup doesn’t mean the team is restricting itself to solely lefty-swingers.  Houston has interest in switch-hitting utilityman Willi Castro, according to The Athletic’s Chandler Rome, though the depth of any talks between the Astros and Twins isn’t known.

Now in his third straight year of above-average offensive production, Castro’s 116 wRC+ — from a .254/.342/.423 slash line and 10 homers in 331 plate appearances — projects as his best over a full season.  Castro’s career splits are pretty much even, though this season has seen him hit considerably better as a right-handed hitter (.836 OPS in 94 PA) than from the left side of the plate (.739 OPS over 233 PA).  A marked increase in slugging percentage is the biggest difference between the two splits, though there is the caveat of a pretty small sample size in 2025, in comparison to the wider measure of Castro’s entire seven-year MLB career.

Even that more modest production as a left-handed bat would still check a big box for an Astros team that was sorely in need of lefty swingers even before Yordan Alvarez’s extended stint on the injured list.  Taylor Trammell and Jon Singleton are the only left-handed hatters on Houston’s active roster, and Victor Caratini and Cooper Hummel are switch-hitters.  While the Astros have good offensive numbers overall, their collective 101 wRC+ against right-handed pitching ranks around the middle of the league, and is a clear flaw to be exploited by rival pitching staffs.

Castro’s ability to play all over the diamond is also a key selling point to his trade value.  Houston has nine position players on the injured list, so Castro can both help provide needed depth right now, and can be mixed-and-matched at any number of positions once some of those injured Astros get back to action.  Speaking with MLB Network Radio on SiriusXM today, Astros GM Dana Brown said that it would be particularly helpful to obtain a left-handed bat who can play within the infield or in left field specifically, as landing such a left field option would allow the Astros to move Jose Altuve back to second base and address the undermanned infield mix.

Third base could be the larger issue at the moment, as Brown also stated today that Isaac Paredes would be getting a second opinion on a hamstring strain that “is a little bit more severe than we projected.”  Manager Joe Espada already stated earlier this week that Paredes was facing a “pretty serious” injury and wouldn’t comment one way or the other about the possibility that Paredes’ season could be over.  Brown’s update that Paredes is getting a second opinion seems to imply that a hamstring surgery could be under consideration, which would certainly rule Paredes out for the remainder of 2025.

Minnesota’s 7-2 loss to the Nationals today dropped the Twins to 50-55 on the season, and 5.5 games back of the last AL wild card slot.  It is becoming increasingly likely that the Twins will be primarily looking to sell at the deadline, and thus impending free agents like Castro are natural trade chips.  Castro’s versatility and switch-hitting bat will make him a hot commodity in trade talks, plus the roughly $2.133MM remaining on his $6.4MM salary for 2025 makes him a fit in any contender’s budget.

For the Astros in particular, Castro’s low price tag has appeal since the club is known to be wanting to stay under the $241MM luxury tax threshold.  Houston’s estimated $235.5MM tax number (as per RosterResource) gives the Astros only a little bit of room to maneuver, but since injuries have opened up so many holes on the roster, it will be difficult for Brown to address everything in a meaningful way without bringing in enough extra salary to cross the tax line.