Miro Heiskanen and Evgenii Dadonov also scored, while Sam Steel added a late empty-net goal. Jake Oettinger made 24 saves.
P.J. Washington led Dallas in scoring again with 21 points, while Doncic had 18 points, 12 rebounds and 10 assists.
Tyler Seguin scored the tiebreaking goal in the second period, powering the Stars to a 4-1 win over the Colorado Avalanche.
The Mavericks beat the Oklahoma City Thunder 105-101 for a 2-1 lead in the Western Conference semifinals.
FC Dallas has won four of its five meetings against Austin in Toyota Stadium.
Dallas defenseman Miro Heiskanen scored two power-play goals, Roope Hintz had a goal and three assists and the Stars beat the Colorado Avalanche 5-3...
The video, posted by Kaitlin Burgess on Facebook, garnered hundreds of thousands of views.
P.J. Washington added 29 points and 11 rebounds for the Mavericks. He averaged 12.9 points in the regular season.
The USL Super League club announced its name and logo at Klyde Warren Park in Dallas.
Stars goalie Jake Oettinger stopped 22 shots, ending his six-game streak of allowing two goals or less.
Kyrie Irving scored 20 points and Daniel Gafford added 16 points, 11 rebounds and five blocks for the fifth-seeded Mavericks.
J.B. Mauney conquered the toughest bulls in the world. As he prepares to enter the Bull Riding Hall of Fame, he reflects on the...