Complex sentence: Healy was noted for his close relationship with Reggie Jackson while on the Yankees, where he served as a mediator between the fiery slugger and Yankee manager Billy Martin, as well as fellow teammate, captain Thurman Munson.
Split into simpler sentences: Healy was noted for his close relationship with Reggie Jackson while on the Yankees. Where he served as a mediator between the fiery slugger and Yankee manager Billy Martin, as well as fellow teamate, captain Thurman Munson.