Los Angeles Lakers (26-17, sixth in the Western Conference) vs. Dallas Mavericks (19-26, 12th in the Western Conference)Dallas; Saturday, 8:30 p.m. ESTBOTTOM LINE: Dallas will try to keep its three-game home win streak alive when the Mavericks take on Los Angeles.The Mavericks are 11-18 against Western Conference opponents. Dallas is 7-10 in games decided by 10 or more points.The Lakers have gone 19-12 against Western Conference opponents. Los Angeles has a 5-0 record in games decided by less than 4 points.The Mavericks average 11.2 made 3-pointers per game this season, 2.4 fewer makes per game than the Lakers allow (13.6). The Lakers average 116.0 points per game, 0.6 fewer than the 116.6 the Mavericks allow to opponents.The two teams play for the second time this season. The Lakers defeated the Mavericks 129-119 in their last matchup on Nov. 29. Austin Reaves led the Lakers with 38 points, and P.J. Washington led the Mavericks with 22 points.TOP PERFORMERS: Cooper Flagg is averaging 18.8 points, 6.4 rebounds and 4.1 assists for the Mavericks. Naji Marshall is averaging 18.9 points over the last 10 games.Luka Doncic is averaging 33.4 points, 7.8 rebounds, 8.7 assists and 1.6 s …