M's LHP Robertson to have elbow surgery
PEORIA, Ariz. -- Seattle Mariners left-hander Nate Robertson will have arthroscopic surgery to remove loose bodies from his pitching elbow.
The team announced Monday that the 33-year-old Robertson, who signed a minor league contract with Seattle in January, is expected to resume throwing in four weeks. He was 0-1 in three appearances (two starts) with a 7.71 ERA in spring training.
Robertson has had previous operations on his left elbow. He's a nine-year major league veteran, with most of that time spent with the Tigers.
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