Donaghy was released from prison last month after serving most of a 15-month sentence in a gambling scandal. He appeared on "60 Minutes" on Sunday night.

Rivers said he's "so sick of that guy right now." The Celtics coach said he loves the NBA and hates that "we're giving a guy like that credibility."

Donaghy claimed on the TV show that he bet on NBA games based on his knowledge of other officials' biases for and against certain players and teams. He claimed his officiating was not compromised.