USA goalkeeper Tim Howard says the final squad will now really knuckle down and prepare for next month's World Cup by working extremely hard.

The Everton gloveman was one of three stoppers picked by head coach Bob Bradley and after the team was announced, he said the real work begins now.

"We are an experienced team, so we're going to prepare like we have always done, with hard work," he said. "We'll prepare as a team and put the finishing touches on our preparation. Then the last week before our first game, we'll focus on England and what they do, and how we can best prepare for that match."