Owen Caissie -- Injury Report

Miami Marlins rookie Owen Caissie was scratched from the starting lineup against the Washington Nationals on May 10, 2026, due to left triceps discomfort. This development creates uncertainty for a team that started the season on pace to be a playoff contender, with Caissie's early performance driving much of the team's success. However, the rookie has experienced a significant drop-off recently, hitting only .138 with nearly a 50% strikeout rate over the past month, coinciding with the team's slide toward the .500 mark.

Should Caissie require a stint on the injured list, the Marlins are expected to turn to Kemp Alderman, an outfielder currently with their Triple-A affiliate Jacksonville Jumbo Shrimp. Alderman has extensive minor league experience and is performing at a strong level in 2026, posting a .288 batting average with a .456 slugging percentage, 5 home runs, and 15 RBIs across 30+ games. The Marlins organization, which typically avoids large free agent contracts and relies instead on prospect development, has limited other outfielders in their pipeline ready for a major league call-up. A potential injury to Caissie could provide the rookie an opportunity to reset while allowing the organization to evaluate Alderman at the major league level.