The 2025 Fantasy Baseball Injury Tracker reveals significant updates as the season kicks off. Arizona Diamondbacks’ Ketel Marte is sidelined with a hamstring strain, set for a few weeks on the 10-day injured list. Meanwhile, Jordan Montgomery is facing a longer absence due to Tommy John surgery, impacting his free agency prospects.

The Athletics’ Zack Gelof is expected to miss 6-8 weeks following hamate surgery. In Atlanta, Spencer Strider is on track for his return after elbow surgery, while Ronald Acuña Jr. continues his recovery from an ACL tear. The Orioles are dealing with multiple injuries, including Grayson Rodriguez and Colton Cowser, both facing extended time on the injured list.