BALTIMORE _ Aroldis Chapman won't be returning after the minimum 10 days expire on his DL stint.
"He'll be reevaluated in a couple of weeks," Aaron Boone said Friday.
Chapman was placed on the DL Wednesday with left knee tendinitis, a condition the closer pitched with most of the season but became untenable during his outing Tuesday against the Marlins. After six pitches, the left-hander signaled to the dugout he needed to come out.
Boone said Chapman, who is 31-for-33 in save chances this season with a 2.11 ERA, was evaluated by the team doctor Friday and received a PRP (platelet-rich plasma) injection.
"We're optimistic he'll return in an impactful way this season at some point," Boone said. "In a lot of ways it (the evaluation) went a little better than the doc thought, but we'll see where we're at in a couple of weeks with it."
As he said Wednesday, Boone said he'll rotate amongst Dellin Betances, Zach Britton and David Robertson to close, depending on matchups. All three have closing experience.