It was not a good night to be a fan of Luka Doncic and the Mavericks after their boneheaded game-losing defensive mistake vs. the Jazz.

With the game on the line against the Jazz, Luka Doncic was just standing around on defense, which has become an all-too-common occurrence for the Mavericks.

The Mavericks lost to the Jazz on a final-possession play where Doncic was at the center of a Dallas defensive breakdown. The mistake was especially brutal because it extended the Mavericks' losing streak to four games. The Sporting News examines Doncic's miscue that lost Dallas the game.