Orioles right-hander Jason Hammel is out indefinitely after receiving a cortisone injection in the flexor mass muscle in his right forearm on Friday after his recent MRI was reviewed by renowned orthopedist Dr. James Andrews.

The injection means that Hammel certainly won’t be ready to return from the disabled list when he is eligible on Tuesday. After taking a week off from throwing Hammel still felt tightness in the forearm following a throwing session this past Tuesday.

On Wednesday Hammel said he'd try to throw again today after a five-day medication pack was completed but instead he will need additional rest before resuming throwing following the injection.

“He’ll rest a couple days” Orioles manager Buck Showalter said. “We’ll see how it manages the next couple days. Hopefully we can go forward with it.”

Showalter said that Hammel requested a second opinion on the forearm and Dr. Andrews’ finding correlated with team orthopedist Dr. John Wilckens who gave Hammel the injection.