September 10, 2026 is a critical date for fantasy managers scanning the fantasy baseball waiver wire, with multiple high-severity injury updates and a significant return from injury reshaping rosters heading into the final stretch of the season. From Shohei Ohtani's right arm concerns to Aaron Judge's cautious return and Brent Rooker's season-ending surgery, there is a lot of MLB player news to process before your next lineup decision. Here is everything you need to know right now.