A former pitcher for the Arizona Diamondbacks is reportedly facing a charge of assault and battery in Berrien County. According to TMZ Sports, 44-year-old Matt Mantei was arrested on Tuesday. He pleaded not guilty on Wednesday and was given a personal recognizance bond. Mantei was a closer who played ten seasons in the Major League. Details of his arrest have not yet been released, but Mantei is due back in court on May 1.