If Gregg Popovich believed disgraced former referee Tim Donaghy's allegations about personal biases, he'd leave the game of basketball.

"A lot of people have worked very hard over the years to bring this sport to where it is right now," Popovich said. "For anybody to think that it is not on the up and up really is offensive. If I thought it wasn't on the up and up and I didn't have any control over outcomes, I wouldn't be doing it.

"It would be kind of a waste of time."