What happened: Seattle has been framed as a possible landing spot for Aroldis Chapman as Boston's season slides toward a potential deadline sell-off. The Red Sox lead the current series 2-0, with Sunday's game against the Mariners still scheduled.

Why it matters: The Mariners are 39-38 and still positioned as an AL West factor despite uneven form, making late-inning stability a clear deadline need. Boston is 30-43, and Chapman's short-term contract status makes him one of the cleaner veteran relief fits if the Red Sox shift into asset management.

What to watch: The next marker is whether Boston keeps treating Chapman as a closer for its own roster or begins fielding firmer deadline proposals. Seattle's bullpen usage around Andres Munoz will also show how urgent that search becomes.