Luka Doncic paid tribute to "unbelievable" Shai Gilgeous-Alexander, conceding the Oklahoma City Thunder guard was "just too good" in their 100-96 victory over the Dallas Mavericks.

Gilgeous-Alexander inspired the Thunder to a second-half fightback in Game 4 as they overturned a 14-point deficit to level their Western Conference semi-final series at 2-2.

The 25-year-old, who described it as "probably the most meaningful game I've played in my career", top-scored for his side for the eighth successive match in this postseason with 34, while he finished with eight rebounds, five assists, two blocks and two steals.

And Doncic, who registered a triple-double for Dallas with 18 points, 12 rebounds and 10 assists, could only watch and admire.

"He was unbelievable," the five-time NBA All-Star said. "He kept making shots and maybe at some point, we've got to send double teams. He's just too good."

Gilgeous-Alexander went 12-of-16 on mid-range shots - the most by any player in a single game over the past two seasons - while matching LaMarcus Aldridge for the most buckets made from that distance in a playoff game in the last decade.

Teammate Chet Holmgren added: "There are some points in the game I'm doing the same thing you guys are doing - just kind of being a fan of what he's doing and when some of those shots go in, just kind of making a face like, 'That's crazy.'

"But he's been doing it all year. I've seen him do it since I got here, that's just who he is."