Los Angeles Lakers at Dallas Mavericks

Cooper Flagg scores 45 points and Mavs beat LeBron James and injury-depleted Lakers 134-128

LeBron James had 30 points and 15 assists for the playoff-bound Lakers, who led for just 13 seconds in the opening minutes of their first game since injuries sidelined Luka Doncic and Austin Reaves for the rest of the regular season.

Doncic, the NBA scoring leader, has a left hamstring strain, and Reaves, LA's No. 2 scorer, is out with a left oblique strain. Both were injured in a blowout loss at Oklahoma City on Thursday.

Flagg, who had nine assists and eight rebounds, recorded consecutive 40-point games for the first time two nights after the 19-year-old rookie No. 1 pick scored 51 to become the first NBA teenager with a 50-point outing. Flagg is the first rookie with back-to-back games scoring at least 40 points since Allen Iverson (1996-97 season).

Luke Kennard had his first career triple-double with 15 points, a career-high 16 rebounds and 11 assists for the Lakers, who dropped into a tie for third in the Western Conference with Denver, although LA holds the tiebreaker on the Nuggets. Houston has a chance to get into the third-place mix in the final week of the regular season.

P.J. Washington Jr. scored 13 of his 15 points after halftime for the Mavericks, whose home skid was their longest at 25-year-old American Airlines Center. They lost the first 19 games of the 1993-94 season at since-demolished Reunion Arena.

James scored 16 points in the second quarter, when the Lakers cut a 22-point deficit to six at halftime.

The 41-year-old in his record 23rd season had back-to-back dunks before the break, then a soaring alley-oop slam from Kennard to get the Lakers within 72-70 early in the third quarter. But LA never got closer.

Up next Lakers: Host Oklahoma City on Tuesday.

Mavericks: Visit the Los Angeles Clippers on Tuesday.

Regular Season Series

LAL win series 3-1