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Jim R. Bounds, Associated Press
Duke's guard Austin Rivers, right, shoots the game-winning basket over North Carolina forward Tyler Zeller (44) during the final seconds of an NCAA college basketball game in Chapel Hill, N.C., Wednesday, Feb. 8, 2012. Duke won 85-84.

BOSTON — Doc Rivers says watching son Austin hit the winning shot for Duke was more fun than coaching.

The Boston Celtics coach says he doesn't have to worry about substitutions or calling timeouts; he can just watch and enjoy himself.

Austin Rivers dribbled down to the final seconds and hit a 3-pointer to give Duke an 85-84 victory over North Carolina on Wednesday night. Doc Rivers was in the crowd with his daughter, cheering Austin on.

Doc Rivers was back in Boston on Thursday night to coach the Celtics against the rival Lakers.

Los Angeles coach Mike Brown joked that he was going to ask for Austin Rivers' autograph.

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