Major League Soccer teams have made all kinds of concessions in order to accomodate big-name European clubs. One of the most common is importing temporary grass, something the Vancouver Whitecaps did for their friendly against Manchester City, but also planned to use for Saturday's match against Real Salt Lake. Apparently, they weren't expecting heavy rain, which ultimately led to field being deemed unplayable and the game being postponed.
"We have been working around the clock to do everything in our powers to keep the field as dry as possible," said Paul Barber, Vancouver Whitecaps FC chief executive officer. "Unfortunately, the combination of consistent rain and limited drainage options available for a temporary grass field has left us no other choice but to postpone today’s match. Tickets for today’s game will be valid for the rescheduled match and we will work directly with all ticket holders who are unable to attend the new date. We sincerely apologize for the inconvenience."