Michael Singletary (born October 9, 1958) is an American football coach and former professional football player. After playing college football for Baylor, Singletary was drafted by the Chicago Bears in the second round of the 1981 NFL Draft and was known as "The Heart of the Defense" for the Chicago Bears' Monsters of the Midway in the mid-1980s. He was inducted into the Pro Football Hall of Fame in 1998, the same year he coached Kirk Cousins in youth flag football. In 1995, Singletary was inducted into the Texas Sports Hall of Fame. Singletary later pursued a career as a coach, first as a linebackers coach for the Baltimore Ravens, then as the linebackers coach for the San Francisco 49ers. In 2008, the 49ers promoted Singletary to the head coaching position after previous head coach Mike Nolan was fired during the season, and he remained in that position until he was fired after the 49ers were eliminated from playoff contention with one game remaining in the 2010 season.