One of only three players (Roy Foster, Lincoln Kennedy) to win the offensive award twice, Mack was also the winner in 2008 of William V. Campbell Trophy (considered by some to the academic equivalent of the Heisman Trophy) for his success in the classroom. Mack was a three-time All PAC-10 selection and played in the 2009 Senior Bowl. One of 27 Morris Trophy winners to be selected in the first round of the NFL draft (21st overall in 2009 by the Cleveland Browns). He played 101 games for the Browns during seven seasons and prior to a leg injury in 2014 had never missed a snap. In 2016 he signed a five year deal with Atlanta.