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Rick Bowmer, AP
Dallas Mavericks pguard Darren Collison (4) drives as Utah Jazz point guard Jamaal Tinsley (6) defends during the first quarter of an NBA basketball game Wednesday, Oct. 31, 2012, in Salt Lake City. (AP Photo/Rick Bowmer)

SALT LAKE CITY — Marvin Williams scored 12 points, Mo Williams added 10 and Paul Millsap grabbed 13 first-half rebounds, but the Utah Jazz trail the Dallas Mavericks, 63-55, at halftime on opening night.

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New Mavs acquisition Darren Collison scored eight points in leading Dallas to an early 15-8 lead, but Marvin Williams answered with eight points of his own in a 10-2 Jazz run.

Mo Williams was forced to exit the game with two quick fouls, but he returned early in the second quarter and added six quick points in a two-minute span.

In the second quarter, the Jazz were aggressive in getting to the basket and earning free throws, making 16-of-21 attempts. But Dallas' hot 3-point shooting allowed the Mavericks to overcome the Jazz's free throws. The Mavs hit 10 out of 16 from long range.

Collison led all scorers with 13 first-half points.

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