What happened: Boston completed an infielder-for-pitcher swap Sunday. MLB's Aug. 3 deadline leaves six days for another move.
Why it matters: The Red Sox entered July 27 holding an AL wild-card position. Scarcity at shortstop could strengthen sellers' leverage before the cutoff.
By the numbers: Boston entered July 27 at 54-50 with a 1.5-game wild-card cushion.
What to watch: Watch whether Boston converts its search into a second infield addition by Aug. 3.