The Los Angeles Angels have shut down Andrew Heaney with what the club is describing as elbow inflammation.
Heaney was a candidate to start on Opening Day.
Brad Ausmus said it isn't expected to be a long-term injury, but Heaney might have to begin the season on the injured list.
"I'm frustrated," Heaney said, "but it's something we just have to take care of now."
Heaney was originally scratched from his March 3 start because of elbow inflammation but was cleared to resume throwing.