The 98th Grey Cup was a Canadian football game played between the Eastern Division champion Montreal Alouettes and Western Division champion Saskatchewan Roughriders to decide the champion of the Canadian Football League (CFL) for the 2010 season. In a rematch of the 97th Grey Cup, the Alouettes defeated the Roughriders for the second year in a row, 21–18, becoming the first team in 13 years to win back-to-back Grey Cups.