In the 2009 Grey Cup Championship November 29, Duval's field goal from 33 yards out on the game's final play gave the Alouettes a 28-27 win over the Saskatchewan Roughriders, capping a remarkable Montreal comeback. Duval had actually missed a 43-yard field goal attempt on what should have been the last play of the game, but the Roughriders were penalized for having too many men on the field. Duval helped the Alouettes win back-to-back Grey Cups with the team's second straight win in 2010.