Uriel Antuna scored following a sloppy giveaway by Sebastian Soto in the 45th minute, and Mexico beat the United States 1-0 at Guadalajara in qualifying for the men’s Olympic soccer tournament. Both teams already were assured of advancing from Group A. The United States finished Group B in second place at 2-1 and is likely to play Honduras, unless Canada beats the Catrachos in Thursday’s finale of Group B. Semifinal winners from the North and Central American and Caribbean region get the final two places in the 16-nation field for the Olympics.