After ousting the Thunder, the Mavericks will now face either Denver or Minnesota in the Western Conference finals.
Luka Doncic posted a triple-double and PJ Washington drilled the deciding free throws as the Dallas Mavericks erased a 17-point deficit to beat Oklahoma City 117-116 to reach the NBA Western Conference finals.
The Mavericks beat the top-seeded Thunder 4-2 on Saturday in the best-of-seven conference semifinal series to reach the conference finals for the second time in three years.
They will face either the defending champions Denver Nuggets or the Minnesota Timberwolves, who faced a deciding game seven in their series on Sunday.
“Being down 17 in a closeout game isn’t a position you want to be in,” said Dallas star Kyrie Irving. “We had to respond the way we’ve responded all season, just playing hard-nosed basketball on the defensive end, getting out in transition and just trusting that our pace would get us back in the game.
“It definitely feels good to get the series done.”
Doncic scored 29 points with 10 rebounds and 10 assists. Irving and Derrick Jones Jr scored 22 points apiece and Dereck Lively added 12 off the bench for the Mavs.
Washington scored all nine of his points in the fourth quarter – including two free throws with 2.5 seconds remaining that lifted the Mavs to victory.
“I think he was just waiting for his moment,” Irving said.
It came after a controversial call in the waning seconds with the Mavs down 116-115. Doncic drove into the lane and then passed to Washington in the corner. But Washington was fouled on his three-point attempt by Thunder star Shai Gilgeous-Alexander.
Oklahoma City challenged the call but it stood. Washington made the first two free throws before intentionally missing the third, the Thunder grabbing the rebound but unable to make a shot from beyond halfcourt.