Mets reliever Grant Hartwig underwent surgery to repair a meniscus tear in his left knee, the team announced (X link via Tim Healey of Newsday). He will be out for six to eight weeks.
Hartwig, 26, is a deep arm who has played for the Mets the past two seasons. He made 28 appearances as a rookie, working to a 4.84 ERA in 35 1/3 innings. That was enough for Hartwig to hold onto his spot on the 40-man roster through the rest of the season. He pitched in four major league games this year, allowing six runs over 6 2/3 innings.
New York kept Hartwig on optional assignment for Triple-A Syracuse for most of this season. The righty has turned in a 2.31 earned run average in 23 1/3 innings there. Hartwig has a 22.3% average strikeout rate compared to a high 11.7% walk percentage. He will continue to count against the 40-man roster while on the minor league injured list.
