Altidore missed the weekend success over Australia in a friendly international in Johannesburg while recovering from an ankle problem.

But the 20-year-old has resumed full training and head coach Bob Bradley is confident he will be able to play a full part against Fabio Capello's side.

Bradley said: "The injury cost him a couple of days (training) but, from the start, we knew it was very minor.

"The fact he is back in regular training means he is available for whatever role we choose on Saturday."

Altidore could have a key role to play against England as he was the USA's leading marksman in their qualifying campaign for the finals with six goals.

But Edson Buddle and Robbie Findley staked their claims to start by impressing as a partnership against Australia.

Meanwhile, Bradley is also optimistic key defender Oguchi Onyewu will be able to complete 90 minutes against England if called upon.

Onyewu has just returned to fitness after suffering a patellar tendon injury seven months ago and did not complete any of the USA's three warm-up games for the World Cup.

Bradley said: "The fitness programme that we have put our players through for the World Cup means all 23 players are ready to play 90 minutes on Saturday if asked.

"It is a credit to our staff and the players because they have worked incredibly hard."