Kimbrel knee surgery successful, out 3 to 6 weeks

BOSTON (AP) Boston Red Sox closer Craig Kimbrel had successful surgery on his left knee Monday to repair a medial meniscus tear.

Kimbrel is expected to be out three to six weeks. The surgery was performed by Dr. Peter Asnis at Massachusetts General Hospital, according to the Red Sox, and Kimbrel should make a full recovery.

Boston acquired Arizona closer Brad Ziegler on Saturday, hours after learning of Kimbrel's diagnosis. Kimbrel was injured during batting practice before a win Friday over Tampa Bay.

Kimbrel has 17 saves and a 3.55 ERA in 34 appearances this season, his first with the Red Sox.

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