The Boston Red Sox’s starting rotation got hit with a question mark on Thursday. Boston’s rotation finally seemingly took a step towards full health with Lucas Giolito making his team debut this week.

Alex Cora said the Red Sox are sending starting pitcher Walker Buehler back to Boston to undergo testing on his shoulder

Boston Red Sox right-hander Walker Buehler has been scratched from Friday night's start against the visiting Minnesota Twins due to issues with his pitching shoulder. Buehler left the team while it was in Toronto to travel back to Boston to undergo testing on the shoulder.