What happened: A proposed deadline deal would send Boston Red Sox right-hander Sonny Gray to the Chicago Cubs, who are hunting rotation depth as the MLB trade deadline approaches. The pitch slots Gray behind Shota Imanaga and Edward Cabrera, helping In exchange, Boston would land a package of younger prospects.

Why it matters: For Chicago, adding a veteran arm like the same Sonny Gray floated in earlier deadline scenarios would stabilize a rotation as the club pushes for a postseason run. For Boston, which has lingered near the bottom of the AL East, flipping a veteran starter for prospects fits a pivot toward restocking the farm system.

What to watch: Watch whether Boston commits to selling and how Gray's full no-trade clause shapes any deal as the deadline nears.