Webb shut down for 3 weeks with shoulder tightness

Posted: Updated:

PHOENIX (AP) -- Arizona Diamondbacks ace Brandon Webb will be shut down for three weeks in a significant setback to his attempt to recover from shoulder problems.

Manager Bob Melvin announced the decision after the Diamondbacks lost to San Francisco 5-1 on Friday night.

Webb's bullpen session was canceled Friday when the right-hander felt tightness in the shoulder while playing catch. It was supposed to be his second bullpen workout. He felt fine after his first, 33-pitch session on Tuesday.

The plan had been for Webb to throw to hitters if Friday's bullpen went well, then perhaps have him make a minor league start.

An MRI showed a small amount of fluid in the shoulder but no structural damage.

The 2006 NL Cy Young Award winner went on the 15-day disabled list April 13, retroactive to April 7.