The Whitecaps canceled practice Wednesday and had a modified session for cleared players Thursday after players and staff reported gastrointestinal symptoms. The Whitecaps are scheduled to play the Seattle Sounders in a Cascadia Cup rivalry match at BC Place on Sunday.

The MLS side has confirmed that "a significant number" of club members have contracted a gastrointestinal illness after their trip to Mexico

The champions of Concacaf will be decided on Sunday night as Cruz Azul and the Vancouver Whitecaps meet in Mexico with a trophy on the line. For the fourth consecutive time, a Liga MX side will face off with an MLS one in this competition and it has been one that Mexican teams have dominated.