When the Expos were announced as an expansion franchise in 1967, one condition for placing an MLB franchise in Montreal was that a domed stadium—thought to be a must due to Montreal's harsh winter weather—be in place for the 1972 season. Finding a site for the Expos to play until that time proved to be a challenge. Delorimier Stadium was ruled out because its location made it impossible to expand beyond its 20,000-seat capacity (it was eventually demolished in 1971). Other options were the Autostade from a World's fair which had inspired the new club's nickname. However, the city balked at the cost of adding a dome and 12,000 seats, and the Canadian Football League's Montreal Alouettes demanded onerous rent.