Seattle Seahawks (first stint) Knox was originally signed by the
Seattle Seahawks as an undrafted free agent on June 15, 2012. He was waived during final roster cuts on August 31, 2012.
Sacramento Mountain Lions Knox then played for the
Sacramento Mountain Lions of the
United Football League (UFL) during the
2012 UFL season, and led the team in sacks with three.
Seattle Seahawks (first stint) Knox was later signed to the Seahawks' practice squad for the final two weeks of the
2012 NFL season. On August 26, 2013, he was cut by the Seahawks.
Jacksonville Jaguars Knox was claimed off waivers by the
Jacksonville Jaguars on August 27, 2013. He was waived on October 3, 2013.
New Orleans Saints On October 23, 2013, Knox was signed to the
New Orleans Saints' practice squad. On January 1, 2014, he was promoted to the Saints' active roster. On May 4, 2015, he was released by the Saints.
Dallas Cowboys On June 2, 2015, Knox was signed by the
Dallas Cowboys. On June 5, 2015, he was released by the Cowboys. On June 29, 2015, he was suspended by the NFL for the first four games of the 2015 season. However, no reason was given.
Winnipeg Blue Bombers Knox played for the
Winnipeg Blue Bombers of the
Canadian Football League (CFL) from 2016 to 2017.
Montreal Alouettes Knox played for the
Montreal Alouettes of the CFL in 2018. He was released on August 15, 2018. ==References==