Red Sox right fielder Mookie Betts probably won't return to the lineup until Boston's series with the Astros in Houston begins Thursday, manager Alex Cora said.
Betts, who is leading the league with a .359 average, sat out Tuesday night's game against Toronto Blue Jays with tightness in his left side. It was the third game he's missed since being a late scratch Sunday after tweaking something during batting practice.
Cora downplayed the severity of the injury, saying "If these games are in September, he'd be playing.