San Diego Padres ace Joe Musgrove is expected to start the 2026 season on the injured list due to ongoing recovery from Tommy John surgery, according to manager Craig Stammen. The 33-year-old right-hander, who last pitched in October 2024, has only made one spring training appearance this year. Stammen explained Musgrove needs more time off to build pitching endurance, stating it's 'hard to ramp him up' to a viable starter capable of throwing five innings. Musgrove's return timeline remains unclear, though Stammen emphasized he'll be available at some point during the season.

This IL placement creates immediate rotation uncertainty for the Padres, who open against Detroit on March 26. Stammen indicated the starting lineup won't be finalized until the day before the opener. The team's current rotation features Nick Pivetta, Michael King, and Randy Vásquez returning from last season, with Germán Márquez and Walker Buehler competing for spots. Stammen praised the depth in spring training, calling it 'fun to watch' as players vie for positions.

Musgrove's absence means the Padres will miss their top starter early in the season, but Stammen framed it as part of a longer-term plan to get Musgrove 'ready for the entire season, not just opening day.' The move signals a cautious approach to his rehabilitation while ensuring the rotation remains competitive through spring.