Klinsmann begins US World Cup training camp in California ready to catch up the Americans

U.S. men's soccer coach Jurgen Klinsmann answers questions during a news conference Wednesday, May 14, 2014, in Stanford, Calif. The U.S. team is practicing at Stanford University before the team's May 27 exhibition against Azerbaijan at Candlestick Park in San Francisco. (AP Photo/Tony Avelar) (The Associated Press)

CORRECTS NAME TO KLINSMANN - U.S. Men's National Team Head Coach Jurgen Klinsmann answers questions during a news conference on Wednesday, May 14, 2014, Stanford, Calif. The US national soccer team kicked off its preparation camp at Stanford University preparing for the World Cup tournament, which gets underway in June. (AP Photo/Tony Avelar) (The Associated Press)

STANFORD, Calif. – Jurgen Klinsmann cut right to it: The U.S. has some serious catching up to do a month before its World Cup opener.

Klinsmann was eager to get started on a scorching Wednesday afternoon at Stanford Stadium as the Americans began a two-week training camp leading up to a May 27 exhibition with Azerbaijan at San Francisco's Candlestick Park.

While all 30 Americans have yet to arrive in the Bay Area, Klinsmann will have the task of cutting the roster to 23 by June 2.

Defender Geoff Cameron and goal keepers Tim Howard and Brad Guzan are scheduled to arrive Sunday, as Klinsmann gave them a few extra days coming from England.

Klinsmann said defender Omar Gonzalez should be close to full strength later in the week following a knee injury.