Lions, Toronto Argonauts, Montreal Alouettes and the Saskatchewan Roughriders in the CFL, San Francisco 49ers in the NFL and the Sioux Falls Storm in the IFL.

A Virginia state native, Mitchell played 1 season of football in 2004 while attending Hargrave Military Academy before transferring to Chapel Hill High School.

[1] Mitchell played his first two seasons of college football as a defensive tackle with the Tarheels team for the University of North Carolina.

His junior season in 2007 included 11 games played that led Mitchell to earning All-Conference USA honors and helping the ECU Pirates football team to victory in the Sheraton Hawai'i Bowl.

Approaching the 2009 NFL draft, experts conversely described Mitchell as possessing "a terrific combination of size, speed and strength" but "does not use any of his tools particularly well."

[citation needed] Mitchell was suspended by the CFL on July 23, 2012, for two games without pay after he violently hyperextended the arm of Edmonton Eskimos offensive lineman Simeon Rottier.

[4] Mitchell caused a controversy for what were understood as racist remarks offensive to people of Chinese descent that he made on Twitter regarding the 2012 US Presidential election debate between Mitt Romney and Barack Obama.

"[6][7] On April 2, 2013, the BC Lions traded Mitchell to the Toronto Argonauts for defensive end Adrian Awasom and the rights to an unnamed negotiation list player.

[11] He was, however, released before the regular season began in 2015 for tweeting a Holocaust denial video and failing to remove the posts from his Twitter page.

[12] On August 31, 2016, midway through the 2016 CFL season Mitchell signed with the Saskatchewan Roughriders as a practice squad member.

[14] On February 7, 2017, Mitchell signed with the Sioux Falls Storm of the Indoor Football League as a starting defensive lineman.