" I am delighted to have been invited," said Englands Number One.
"It's a great opportunity to learn more about the sport, and put myself up against some of the best athletes in the world.
"American Football has always shown the way forward in terms of conditioning and performance and I am keen to apply any tips or insights that I can gain to my career as a professional footballer."
As part of the training, James will learn how to play three positions that seem the best suited for him - quarterback, wide receiver and kicker.