He was signed by the New Orleans Saints as an undrafted free agent in 2007[1] and was the second player in the school's history to go to the NFL.

[citation needed] He was selected by the Calgary Stampeders in the third round of the 2007 CFL Draft.

MacDonald has also been a member of the Carolina Panthers, Winnipeg Blue Bombers,[2] Seattle Seahawks and Montreal Alouettes, winning a Grey Cup in 2008 and 2010.

[citation needed] Media related to Pat MacDonald at Wikimedia Commons

This biographical article relating to a Canadian football defensive lineman is a stub.