CINCINNATI -- The Reds certainly weren't expecting starter Alfredo Simon to lack command and velocity on his pitches when he worked twice last week. They were surprised when they learned the reason behind his struggles late Monday night when it was revealed that Simon has right biceps tendinitis. He was scratched from his scheduled start vs. the Rockies tonight.
Robert Stephenson, the Reds' No. 2 prospect and No. 33-ranked overall per MLBPipeline.com, was recalled from Triple-A Louisville to take Simon's turn. Reliever Jumbo Diaz was optioned to Louisville to make room for Stephenson on the roster.