USA striker Clint Dempsey will not play for the Americans in Saturday's key 2010 FIFA World Cup South Africa™ qualifier at Honduras because of a shoulder sprain, the US Soccer Federation announced Monday.

Dempsey, second top scorer for the USA in the campaign with five goals, will be evaluated this week to decide if he will be considered for the final US qualifier on 14 October in Washington DC against Costa Rica.

An MRI exam Monday showed the extent of the injury to Dempsey, who left in the 84th minute of Fulham's 2-2 draw at West Ham in an English Premier League match on Sunday.

The Americans conducted their first training camp workout Monday morning with 13 squad member as several players, including Everton goalkeeper Tim Howard, were set to arrive later following club matches over the weekend.

One victory from the two matches will ensure the Americans, who lead the North, Central American and Caribbean Zone qualifying table, a trip to the world finals next year.

Costa Rica also suffered a blow over the weekend, losing midfielder Celso Borges to an injury in a match for his Norwegian club, Fredrikstad. Borges, with five goals in 15 caps, will miss Saturday's home match against Trinidad and Tobago as well as the US clash and Costa Rican defender Cristian Montero is questionable due to a shoulder injury.