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Bret Hartman, Associated Press
Los Angeles Lakers center Andrew Bynum, middle, battles to keep the ball from Dallas Mavericks center Brendan Haywood, right, and Mavericks guard Vince Carter during the first half of an NBA basketball game, Sunday, April 15, 2012, in Los Angeles.

LOS ANGELES — Andrew Bynum had 23 points and 16 rebounds, Pau Gasol made back-to-back 3-pointers in overtime, and the Los Angeles Lakers won their fourth straight game without Kobe Bryant, 112-108 over the Dallas Mavericks on Sunday.

Ramon Sessions scored 22 points, and Gasol had 20 points and 10 rebounds for the Lakers, who are 4-1 while the NBA's leading scorer rests his bruised shin.

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Metta World Peace had 18 points as Los Angeles rallied from a fourth-quarter deficit before finishing off a four-game season sweep of the defending champion Mavericks, who swept the Lakers out of last season's playoffs.

Dirk Nowitzki had 24 points on 9-of-28 shooting and 14 rebounds, but Jason Terry missed a potential tying layup at the rim with 5 seconds left in overtime for the Mavericks, whose three-game winning streak ended. Delonte West scored 20 points, and Terry had 21 before missing a shot while trying to avoid Matt Barnes' defense.