Dallas' chances of winning against the Thunder.
An angry Luka Doncic shook his head and walked slowly back to the Mavericks' bench.
This was the third time in Dallas' first five games this season that their best player.
Who is just 23 years old, missed a game-winning shot in regular time.
The Mavericks' most recent loss was a 117-111 overtime setback to the Oklahoma City Thunder on Saturday night at American Airlines Center.
The Mavericks had a 16-point lead with 4:14 remaining in regulation but lost it.