His 2013 season ended prematurely when he required surgery to repair a torn meniscus in his knee .
Pitching for the Binghamton Mets of the Class AA Eastern League in 2013 , Mazzoni had a 4.36 earned run average and 74 strikeouts in 66 innings pitched .
Mazzoni 's 2013 season ended prematurely when he required surgery to repair a torn meniscus in his knee .
Pitching for the Binghamton Mets of the Class AA Eastern League in 2013 , Mazzoni had a 4.36 earned run average and 74 strikeouts in 66 innings pitched .