Mark Eaton may refer to: Wikipedia
Mark Edward Eaton (January 24, 1957 – May 28, 2021) was an American professional basketball player who spent his entire career (1982–1993) with the Utah Jazz of the National Basketball Association (NBA). Named an NBA All-Star in 1989, he was twice voted the NBA Defensive Player of the Year (1985, 1989) and was a five-time member of the NBA All-Defensive Team. The Eaton became one of the best defensive centers in NBA history. He led the league in blocks four times and holds the NBA single-season records for blocks (456) and blocked shots per game average (5.6), as well as career blocked shots per game (3.5). His 53 was retired by the Jazz. Wikipedia
Mark Andrew Eaton (born May 6, 1977) is an American former professional ice hockey defenseman who played 13 seasons in the National Hockey League (NHL) for the Philadelphia Flyers, Nashville Predators, Pittsburgh Penguins, and New York Islanders. He is the only NHL player to ever come from Delaware. He attended John Dickinson High School in the Wilmington suburbs but played his youth hockey across the state line in Pennsylvania. He is currently the director of player development for the Chicago Blackhawks. Wikipedia