Today is the Grey Cup, the championship game of the Canadian Football League. It takes place in Calgary, and pits the Western Conference champs the Saskatchewan Roughriders against the Eastern camps, the Montreal Alouettes . The game is the most popular televised event in Canada each year, and the trophy that the winner will hoist is an old one – it was first awarded in 1909. Even if you aren’t a Canadian, this game, which kicks off after 6:30 pm eastern time, is worth a look. To get you up to speed on this contest here are five things you’ll need to know if you aren’t familiar with the league: