DALLAS (AP) — Dorian Finney-Smith hit a go-ahead 3-pointer in the final seconds, Luka Doncic ended his longest stretch without a triple-double since his rookie year and the Dallas Mavericks won a 125-124 thriller over the Washington Wizards. Doncic finished with 31 points, 12 rebounds and a career-high 20 assists. The last was to Finney-Smith in the right corner for the lead. Dallas pulled even with the Los Angeles Lakers for the fifth seed in the Western Conference. Russell Westbrook had 42 points, 10 rebounds and nine assists for the Wizards, who lost for just the third time in 15 games.