Phoenix Suns wing Kelly Oubre is becoming one of the most entertaining players in the NBA for all of the wrong reasons.

On Wednesday night against the Dallas Mavericks, Oubre tried to asset his his toughness on the defensive end, getting into a stance and smacking the floor only to see Mavericks rookie Luka Doncic drain a fadeaway jumper right over him:

Now, to be fair to Oubre, he actually played solid defense there. Doncic just made an incredible shot, something he has made a habit out of doing this season.

Oubre is playing in his 12th game with the Suns after being traded from the Washington Wizards last month.

The 23-year-old has actually been playing pretty well thus far in Phoenix, averaging 11.9 points and 3.1 rebounds over 24.7 minutes per game while shooting 44.2 percent from the floor, 37.2 percent from three-point range and 85.2 percent from the free-throw line.

Overall this season, Oubre is registering 12.6 points and 4.1 boards across 25.7 minutes a night, making 43.5 percent of his field-goal attempts, 32.6 percent of his long-distance tries and 81.3 percent of his foul shots.

Oubre, who played his collegiate basketball at the University of Kansas, was originally selected by the Atlanta Hawks in the first round (15th pick overall) of the 2015 NBA Draft, but he was immediately traded to the Wizards.

He played three-and-a-half seasons in Washington but was a pretty big disappointment, struggling to shoot from three-point range and being generally inconsistent on both ends of the floor.

Oubre owns career averages of 8.3 points and 3.5 rebounds per game.