Donald Arthur Mattingly (born April 20, 1961) is an American professional baseball coach, and former first baseman and manager in Major League Baseball (MLB). He is the bench coach for the Toronto Blue Jays of MLB.
Nicknamed "The Hit Man" and "Donnie Baseball", he spent his entire 14-year career playing with the New York Yankees and later managed the Los Angeles Dodgers for five years.
Mattingly was named to the American League (AL) All-Star team six times. He won nine Gold Glove Awards (an American League record for a first baseman), three Silver Slugger Awards, the 1984 AL batting title, and was the 1985 AL Most Valuable Player. Mattingly served as captain of the Yankees from 1991 through 1995, when he retired as a player.