"He's a young boy who loves playing rugby league so when you take that away from him, he's not got much left. That's what he does.
"It's probably helped him keep his feet on the ground and made him realise how quickly some of these things can get taken away from him."
Burgess signed a new contract with the Bulls in June last year that will see him remain at Odsal until the end of the 2011 season.
He made his England debut in the 56-8 win over France, a day after extending his Bradford stay, but his shoulder injury forced him to miss the World Cup in October.
Bradford begin their Super League campaign away at Harlequins on Sunday, 8 February.
McNamara said: "He has been chomping at the bit. He probably won't play in the pre-season game at Dewsbury (on Sunday), but he should certainly figure at Whitehaven."
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