Former Nebraska I-back Ahman Green missed most of last season with a knee injury, and his eagerness has been on display at the Houston Texans' training camp.

The four-time All-Pro often catches himself going a little too hard in workouts.

He says that's just the way he's built, just the way he plays football.

Green bruised his left knee in the third game of 2007, and he missed all or part of 10 games.

At minicamp in May, the knee was healed, but Green was still preoccupied with it.

He says the more repetitions he took, the more he put the injury out of his mind.

Now he says he's rebuilding his stamina and perfecting his technique.

Houston coach Gary Kubiak says Green is working through the pain.

Courtesy: Associated Press