That means Valverde, while eligible to come off the disabled list on May 12, is likely out until June.
What does this mean for the bullppen?
The plan is the same -- LaTroy Hawkins will receive the majority of the save opportunities, but manager Cecil Cooper isn't opposed to using a closer-by-committee method when Hawkins needs a day off.
Cooper named Doug Brocail and Chris Sampson as closer options. The newest member of the 'pen, Felipe Paulino, could factor in as well.
"But Hawk will be the first option," Cooper said.
Alyson Footer is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.