New York Yankees closer Luke Weaver received a platelet-rich plasma injection designed to speed healing in his injured left hamstring, according to the Associated Press (h/t ESPN).

Weaver was injured Sunday while he stretched in the Yankees bullpen after warming up to pitch the ninth inning of a 7-3 win over the Dodgers. When Weaver reported feeling a grabbing in his hamstring, the Yankees went with left-hander Tim Hill to close over the victory.

Yankees closer Luke Weaver is doing well in the early stages of his recovery from a left hamstring strain. Weaver received a PRP injection this week and he was able to resume his throwing on Thursday and again prior to Friday’s series opener against the Red Sox.