United States' Aron Johannsson performs drills during training in preparation for the World Cup soccer tournament, Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
United States' Landon Donovan, right, and DaMarcus Beasley take part in drills during training in preparation for the World Cup soccer tournament on Wednesday, May 21, 2014, in Stanford, Calif. (AP Photo/Marcio Jose Sanchez)
U.S. forward Landon Donovan is assisted in stretching by a trainer during training for the World Cup soccer tournament Thursday, May 22, 2014, in Stanford, Calif. Donovan was cut from the roster later Thursday for the World Cup. (AP Photo/Ben Margot)
U.S. forward Landon Donovan stretches prior to practice for the World Cup soccer tournament Thursday, May 22, 2014, in Stanford, Calif. Donovan was cut from the roster later Thursday for the World Cup. (AP Photo/Ben Margot)
United States forward Landon Donovan stretches with assistance from a trainer in preparation for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
United States goalie Tim Howard, right, practices during training in preparation for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
United States goalie Tim Howard rests before a practice in preparation for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
United States soccer coach Jürgen Klinsmann, right, speaks with goalie coach Chris Woods during training in preparation for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
U.S. goalie Tim Howard, second from right, and teammates train for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)
United States goalie Tim Howard, second from right, works out with teammates during training in preparation for the World Cup soccer tournament on Thursday, May 22, 2014, in Stanford, Calif. (AP Photo/Ben Margot)