Tyler Yates, Sean Gallagher, Daniel McCutchen, Josh Fields, and Wyatt Toregas have been sent to minor league camp (via the Post-Gazette).
UPDATE by Charlie: No huge surprises here. Fields was in competition for a bench spot, but only hit .172/.207/.306 this Spring. I suppose Steve Pearce and Andy Marte's chances of making the team just increased a bit, but I would have been surprised if Fields had made it over either of them. I'm pleased that Yates, who wasn't any good even before all the arm problems, didn't make the team.
Also, the Post-Gazette notes that Joe Beimel won't start the season with the team.