What happened: Boston Red Sox right-hander Sonny Gray has emerged as one of the most coveted arms ahead of the trade deadline, with his market value continuing to rise. The veteran starter has anchored a rotation that has been one of the league's hottest stretches, sharpening interest from contenders.

Why it matters: At 36-46 and sitting near the bottom of the AL East, the Red Sox are positioned as sellers, making a frontline starter like Gray their most valuable trade chip. Moving him could return a significant prospect haul, echoing the earlier deadline scenarios pairing Gray with contending rotations.

What to watch: Watch whether Boston's front office leans fully into a sell-off as the deadline approaches and which contenders firm up offers for Gray.