Mavericks' late collapse cost them a win against the Thunder.
Shouting and shaking his head, Luka Doncic walked back to the Mavericks' bench.
A game-winning shot from the right high post on a fadeaway attempt after deftly isolating on Thunder defender.
Lu Dort was missed by the 23-year-old superstar for the third time in Dallas' opening five games this season.
After then, Doncic's disappointment was at an all-time high.
The Mavericks' 16-point lead in the last 4:14 of normal time was blown in a 117-111 overtime loss to the Oklahoma City Thunder on Saturday.