Kekuta Manneh scored in the 81st minute to give the
Chivas midfielder Agustin Pelletieri was ejected in the 13th minute for a studs-up tackle on Vancouver's Pedro Morales.
Erick Torres scored for Chivas (1-0-1) in the 45th minute.
Mauro Rosales sprinted down the middle of the field and fed Torres, who fired a shot on goal. The ball deflected off Vancouver's Jey DeMerit and bounced across the goal line for Torres' second goal of the season.