Maurice Samuel 'Mo' Vaughn (born December 15, 1967 in Norwalk, Connecticut), nicknamed "Hit Dog", is a former Major League Baseball first baseman from 1991 to 2003. Vaughn was a three-time All-Star selection and won the American League MVP award in 1995.
He was noted for "crowding the plate"; his stance was such that his front elbow often appeared to be hovering in the strike zone, which intimidated pitchers into throwing wide and outside.
Vaughn became the center of the Red Sox's line-up in 1993, hitting 29 home runs and contributing 101 RBIs. In 1995, he established a reputation as one of the most feared hitters in the American League when he hit 39 home runs with 126 RBIs and a .300 average. He also garnered 11 stolen bases. His efforts, which led the Red Sox to the playoffs (only to lose to the Cleveland Indians in the American League Division Series), were rewarded with the American League MVP award.