HOUSTON -- The pitching carousel continues to spin for the Boston Red Sox.
For the fourth time in six days, the Red Sox have made at least one roster move that will impact their struggling pitching staff. Left-hander Henry Owens was called up from Triple-A while hard-throwing righty reliever Pat Light also was summoned from Pawtucket. Lefty Roenis Elias and right-hander Noe Ramirez were optioned to Triple-A.
Owens will start Sunday night against the Houston Astros (8 p.m., ESPN). He's taking the place of right-hander Joe Kelly, who suffered a right shoulder impingement in the first inning Tuesday night at Fenway Park.