Dirk Nowitzki scored a season-high 22 points, Harrison Barnes had 21 and the last-place Dallas Mavericks spoiled Isaiah Thomas' strong debut with the Lakers, beating Los Angeles 130-123 on Saturday night. Thomas finished with 22 points and already looks like a better fit in coach Luke Walton's offense than he did in an ill-fated 15-game stint with Cleveland after the offseason trade that sent Kyrie Irving to Boston. The diminutive guard's first half with the Lakers was his highest-scoring half of the season, a team-high 16 points.