Two days after placing Triston Casas on the IL, the Red Sox have shut down the rookie from baseball activities, the team confirmed to reporters (including Pete Abraham and Alex Speier of The Boston Globe). With only 12 games remaining on the schedule for Boston, this likely marks the end of the young first baseman’s season.
The team is still waiting for MRI results, but they do not yet have any reason to believe the injury is more serious than the initial diagnosis of “right shoulder inflammation.” Still, they are choosing to play things safe with the 23-year-old slugger. While the Red Sox have not been mathematically eliminated, their postseason chances are beyond slim. Sitting 8.5 games back of a Wild Card berth with 12 to play, FanGraphs has their playoff odds below 0.1%. Thus, the club has little need to rush one of their brightest young players back from injury.
If indeed he doesn’t play another game, Casas will finish with 502 plate appearances, giving him just enough to qualify for the batting title. He currently ranks first among qualified AL rookies in OPS and wRC+, although the red-hot Gunnar Henderson could surpass him in either category before the year is up.
Bobby Dalbec started at first base on Sunday in place of Casas, and he is slated to start again this evening. The 28-year-old will have a chance to make a good impression over the next two weeks, as he tries to work his way back into a regular role with the big league club. After a disappointing 2022 season with Boston, he has spent much of 2023 at Triple-A. The righty batter has played well for the Worcester Red Sox (.938 OPS in 114 games) but has been blocked at the MLB level for most of the season.