The 108th Grey Cup decided the Canadian Football League (CFL) championship for the 2021 season. Due to the COVID-19 pandemic, the 2020 season was cancelled and the start of the 2021 season was delayed, pushing the game to December 12, 2021. The 108th Grey Cup was a rematch of the 107th Grey Cup in 2019 between the defending Grey Cup and West Division champion Winnipeg Blue Bombers and the East Division champion Hamilton Tiger-Cats, at Tim Hortons Field in Hamilton, Ontario. The Blue Bombers defeated the Tiger-Cats 33–25 in overtime for their second straight title, making them the first team in 11 years to win two straight Grey Cups. This game was also the fourth Grey Cup to go into overtime, with the other three instances coming in 1961, 2005 and 2016.