From playing college football at Buffalo to becoming one of the best defensive players in National Football League (NFL) history with the Chicago Bears, Khalil Mack has always been a standout

When the Bears brought the football star to their city, they offered him the highest-paying contract in NFL history for a defender. Learn more about what the NFL Defender of the Year was like growing up, his workout regimen, and the ways he makes a difference in people's lives.