Mitchell was 29-of-33 passing for 376 yards and three TDs in a 37-24 win over the Winnipeg Blue Bombers. Mitchell also ran six times for 12 yards.
Montreal linebacker Kyries Hebert was named the top defensive player. He had 10 tackles and two sacks in the Alouettes' 32-27 win over Edmonton and has a league-high seven sacks this season.
Teammate Sean Whyte was the top special-teams player. The Alouettes kicker hit all six of his field goals against Edmonton.
Alouettes linebacker Shea Emry was named the top Canadian. The native of Richmond, B.C., had two interceptions against Edmonton, returning one 21 yards for a touchdown.