Free agent Robb Nen, who hoped to pitch this year after missing two seasons with a torn rotator cuff, has had to stop throwing because of a sore shoulder.
''He’s had some setbacks. He’s just shut it down, pretty much,’' said Rockies special assistant Marcel Lachemann. ''He’s just going to shut it down, let his arm see how it feels. He’s tried everything. He’s rested, done everything else. He was going along pretty good, then it started bothering him again.’' Nen is probably done, but there is the chance he could join a team during the season if his shoulder feels any better.