Led all Golden Gopher defenders with 11 tackles for a loss and seven sacks in 2016 while earning an All-Big Ten Honourable Mention.

Richardson signed with the Winnipeg Blue Bombers of the Canadian Football League (CFL), reuniting with University of Minnesota teammates Chris Streveler and Drew Wolitarsky.

[1] Richardson won the 107th Grey Cup in his rookie year, in a game which saw the Bombers defensive line apply constant pressure to Dane Evans and the Hamilton Tiger-Cats as Winnipeg soared to a 33-12 victory.

[3] Following the cancelled 2020 season Richardson signed a one-year contract extension with the Winnipeg Blue Bombers on February 5, 2021.

[5] On April 20, 2022 the BC Lions announced that Richardson suffered a significant injury which would cause him to miss a large amount of time.