Cox was originally signed by the
Detroit Lions as an
undrafted rookie free agent on April 28, 2005, and he spent the 2005
training camp and preseason with the team. However, Cox was released on August 30, and he subsequently played in the CFL for the Montreal Alouettes. On January 9, 2007, he was signed by the
Washington Redskins but was cut before training camp and returned to Montreal. After switching to the
linebacker position for the
2009 season, Cox led the CFL in forced fumbles and capped off the year by winning the
97th Grey Cup with the Alouettes. In
2010, the Alouettes repeated as champions and won the
98th Grey Cup. On November 5, 2011 against the
BC Lions, Cox reached 400 career defensive tackles with the Alouettes, becoming the only player in club history to achieve this feat. In
2013, Cox had a career high, and league leading, number of tackles with 115. He also had 12 sacks (career high) and four interceptions en route to winning the
CFL's Most Outstanding Defensive Player Award and the
James P. McCaffrey Trophy. With his 115 tackles that season, he broke the
Montreal Alouettes single-season record of 110 set by
Tracy Gravely in the
1996 CFL season. On December 2, 2014, the Alouettes announced that they had resigned Cox to a three-year deal worth more than $200,000 annually, which general manager Jim Popp stated would make him the CFL's highest-paid defensive player. He continued to have strong performances, registering at least 65 defensive tackles in each of the subsequent four seasons. He became a
free agent on February 13, 2019. Cox was announced as a member of the
Canadian Football Hall of Fame 2022 class on June 21, 2022. ==References==