
On Sunday, the Detroit Tigers promoted left-handed hitting outfielder Brett Callahan from Triple-A to the major league club. To open a spot on the active roster as well as on the 40-man roster, outfielder Trei Cruz has been designated for assignment.
The 24-year-old Callahan has been a really nice success story even to get to this point. He was the Tigers 13th rounder out of Saint Joseph’s University in Philadelphia back in the 2023 draft. He signed for $197,500 and made his pro debut for Low-A Lakeland late in the 2023 season. Callahan was banged up quite a bit in 2024 and again in 2025, but once he finally got beyond the injury bug, he made rapid progress in the second half of the 2025 season at High-A West Michigan.
Callahan had no helium coming out of a small college as a late round selection, but we identified the natural loft in his swing and pull-hitter tendencies early on, along with solid plate discipline and a good all-around toolkit, and ranked him 36th in the system heading into 2025. After a strong second half last year in West Michigan, he made a little noise in major league camp back in the spring, hitting a pair of pretty majestic home runs. We ranked him 26th in the farm system back in January, and Callahan then proceeded to tear through the Eastern League with the Double-A Erie SeaWolves. He hit .268/.374/.504 with 12 home runs, 20 stolen bases, and a 133 wRC+ in 265 plate appearances there, with a strikeout rate of 20.8 percent against a walk rate of 12.8 percent. As a result he’s been one of the biggest risers on national prospect lists this year.
Callahan was promoted to Triple-A Toledo along with John Peck in late June. He is an aggressive swinger who, like Hao-Yu Lee, rarely gets cheated at the plate. Callahan will take his walks, but he will still chase out of the zone too much, posting a 34.6 O-swing rate in Toledo. His strikeout rate has spiked up to 25.8 percent with the Mud Hens, and while that wasn’t a surprise, the chase rate will have to improve for Callahan to hang and ultimately thrive in the major leagues. Improving his approach at the Triple-A level was the final key to reaching the Show but he hasn’t had enough time there to work on it yet. Even so, he manages to do damage on mistake pitches even when he’s not running hot, and the Tigers might catch a bit of fire with him in a short first look at the major leagues.
Typically playing right field, but good in either corner, Callahan has enough speed and experience to handle center field, but his plus arm plays more effectively from the corners. He’s capable of stealing some bases as well. Overall it’s a pretty well-rounded profile, but he’ll likely struggle to adapt to the type of sequencing major league hitters can deal out to an aggressive young hitter. There’s still a ceiling here in which Callahan hits like Kerry Carpenter while playing better defense, but he’ll have to adapt to better pitching and put together a more disciplined approach at the plate to get enough pitches he can drive for damage.
This is the first season where Callahan has cleared 300 plate appearances, and those injuries stunted his progress for a while in pro ball. Despite his age, he really hasn’t had a long stretch of uninterrupted reps until this season, and since he’s been healthy he’s moved quickly through the system. We like him, but this is coming really quickly after his promotion to Triple-A Toledo, and he is going to have some struggles adapting to the major league level. That may be somewhat balanced out by the fact that he has a pretty well rounded game and will do some things to help his team win in the field and on the basepaths as well. Either way, the Tigers need some temporary corner outfield help, and Callahan has more to offer at this point than Cruz.
As for Trei Cruz, injuries in his mid-20’s, including Tommy John surgery in 2024, interrupted his development in some crucial years. He bounced back with a really good 2025 campaign that got him added to the 40-man, but wasn’t able to show much in his major league debut. He has really struggled at the Triple-A level after dealing with another injury early in the season. Now 28 years old, there just wasn’t a big breakout coming, but Cruz did become the third generation of his family to reach the major leagues and may eventually find his way to some work as a utilityman somewhere.










