Prior (shoulder) threw about 30 pitches from the bullpen mound before Tuesday's game, the Associated Press reports. Pitching coach Larry Rothschild said Prior has progressed to a point where he doesn't feel any pain. He will throw again Friday in Arizona. This is good news for Prior owners, though we'll remain agnostic about his prospects until he faces hitters in a rehab assignment or a major league game. If all goes well, Prior could be back at some point in early to mid May.