Fantasy managers need to stay sharp on the fantasy baseball waiver wire as a wave of injury updates reshapes rosters heading into the week of June 9, 2026. From a concerning back scare in Baltimore to a crowded Arizona depth chart complicating a veteran's comeback, today's MLB player news carries real implications for your lineup decisions. Here's everything you need to know about the latest signals to help you make smarter fantasy baseball pickups before your leaguemates do.