LAKE BUENA VISTA, Fla. (AP) — Devin Booker scored 27 points and the Phoenix Suns rolled past the Dallas Mavericks 128-102 on Thursday to keep their playoff hopes alive and finish as the only unbeaten team in the seeding games. Dario Saric scored 16 points and Cameron Payne and Cameron Johnson each added 15 for the Suns. They will qualify for the play-in series that starts Saturday if Portland loses to Brooklyn later Thursday. Dallas was already locked into a playoff matchup with the Los Angeles Clippers, so the starters played limited minutes. Luka Doncic, who had averaged 32 points, 11 rebounds and 11.3 assists in the bubble, finished with 18 points in just over 13 minutes. Boban Marjanovic, Dallas’ 7-foot-4 reserve center, had 18 points and a career-high 20 rebounds.