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).

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.

Yankees closer Luke Weaver had a platelet rich plasma injection in his injured left hamstring, and designated hitter Giancarlo Stanton is on track to start a minor league rehabilitation assignment next week.