WASHINGTON (AP) -Nationals reliever Chad Cordero is expected to be sidelined for at least a month with a tear in a muscle below his pitching shoulder, although the team determined Wednesday he won't need surgery.
Cordero left Washington's 6-3 victory over Atlanta on Tuesday night when he felt pain while throwing a pitch in the ninth inning.
The right-hander had an MRI and was checked out by a team doctor Wednesday. The Nationals said he will miss four to six weeks but they did not immediately put him on the disabled list, because they haven't decided what the corresponding roster move will be.
It will be Cordero's second trip to the DL this season after missing time because of tendinitis in his throwing shoulder.
He led the majors with 47 saves in 2005.

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