Updated

A spate of injuries has robbed the United States national team of some top players entering its final two qualifying matches for the 2014 World Cup.

That hasn't hurt Jurgen Klinsmann's confidence that his team will head to Brazil with positive momentum.

The U.S. already has punched its ticket to the World Cup and isn't planning to let off the gas as the players reassemble for training camp on Sunday to prepare for the qualifying matches against Panama and Jamaica this month.

Both Jermaine Jones and Michael Bradley could miss the games. Jones is reportedly considering knee surgery to repair meniscus problems and could be out for at least six weeks. Bradley has struggled with a sprained ankle that has kept him from playing with his club team, AS Roma.

Clint Dempsey is also questionable after a hamstring injury has kept him out of two consecutive matches for the Seattle Sounders.