Webb, who made his first bullpen workout on Tuesday, skipped his bullpen session on Friday due to tightness in his shoulder.
“It’s obviously a little confusing because he felt good the last time out,” [D'Backs manager Bog] Melvin said before the Diamondbacks hosted the San Francisco Giants. “All the maintenance stuff leading up to (Friday) would suggest he felt good. Once he played catch there was just some tightness in the same spot and we didn’t want to push it any further than that.”Webb was placed on the 15-day DL on April 13th retroactive to April 7th.
“He’s a guy we’re going to be careful with,” Melvin said. “We’re not going to push him and say `See if you can throw through it and see if it loosens up.’ He’s too important for us to try to push through something through that.”