Knee surgery to sideline Niese at least 4 weeks

ST. LOUIS — Jonathon Niese’s second stint with the Mets began with a July 31 trade from the Pirates, continued with a pair of unsuccessful rotation turns, and likely ended Wednesday, when the team announced that he will undergo surgery to repair a meniscus tear in his left knee.

Though Niese has been dealing with knee pain since June, experiencing a flare-up during his start last week in Arizona, he took the mound regardless Tuesday against the Cardinals. It did not go well; Niese walked two batters, allowed an RBI single to another and only then admitted his discomfort, walking off the field alongside trainer Ray …

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