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.

Canada coach Jesse Marsch expressed outrage Friday, saying Vancouver Whitecaps players had been "poisoned" during their visit to Mexico for the CONCACAF Champions Cup final.

When the Columbus Crew faced Pachuca in the 2024 Concacaf Champions Cup final, they had similar issues with food poisoning impacting the team and the staff before losing 3-0 to Pachuca, which is what Marsch was referring to. He did add, "I don't have any evidence, but It's not random that two years in a row that this has happened."