Duncan Hurt in Loss

Michael Finley opened the third quarter with a dunk and closed it with a basket from half court, bookends for a 46-point quarter that the Mavericks rode to a 115-91 victory over the San Antonio Spurs on Thursday night at Dallas.

The Spurs suffered their most lopsided loss of the season and lost two-time most valuable player Tim Duncan for most of the second half because of a bruised thigh.

“He’s probably going to miss a little time,” Coach Gregg Popovich said of Duncan.

Finley made 10 of 14 shots, including five of seven three-point baskets for 30 points to help Dallas improve to 3-0 against San Antonio.

Duncan had 22 points and 17 rebounds when he left with 7:15 to play in the third quarter. The Spurs were down by nine and never got any closer.

Washington 95, Chicago 87 -- One night after staging a mini-mutiny on offense, Gilbert Arenas had his second career triple-double with 21 points, 12 rebounds and 13 assists at Washington.

On Wednesday, Arenas didn’t take a shot until 5:30 remained at Toronto, smarting from accusations of selfishness by teammate Kwame Brown.

Kirk Hinrich scored 23 for the Bulls.

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Guard Sam Cassell of the Minnesota Timberwolves could sit out his second game in a row tonight because of tendinitis in his left ankle.