Rockies pitcher Drew Pomeranz threw a bullpen session Monday, according to MLB.com.
Pomeranz has been sidelined since July 22 with biceps tendinitis. Manager Walt Weiss said it's probably too late for Pomeranz to return as a starter, but he could be used in the bullpen if he progresses well.
Pomeranz has a 8.10 ERA in 16 2/3 innings.