No. No. 1 Kansas jumped out of the gate early, overcoming a second-half takedown of All-America center Hunter Dickinson for a thrilling 75-72 victory over 11th-ranked Duke Tuesday night.

The Jayhawks earned the high-profile victory while limiting Duke’s Cooper Flagg to 13 points and forcing the freshman phenom into four turnovers. Flagg’s supporting cast led several runs to keep things close before the tone of the game took a dramatic turn midway through the second half.

With Kansas leading 57-55, Dickinson grabbed an offensive rebound in traffic and was undermined by Duke’s Maliq Brown. Both players fell to the ground with their bodies tangled. While on the ground, Dickinson kicked Brown in the head with his right foot, and a brief scuffle ensued.

Officials assessed Brown a personal foul on the floor and then went to the monitor. After a lengthy review, they issued a flagrant second technical foul to Dickinson, a penalty that carries an ejection. Dickinson’s night was over and he had to leave the Kansas bench.

Dickinson remained on the bench before the officials noticed he was still there at the next break. Ultimately, he was escorted off the field.

The game was a back-and-forth battle for the rest of the game before Duke looked at a go-ahead shot in the final seconds of the game while trailing 72-71. Kansas defenders smothered Kon Knueppel’s runner in the lane with 3.3 seconds left, and Kansas guard Rylan Griffen grabbed the rebound.

Griffen hit two free throws on the other to extend the lead to three, and Duke couldn’t respond on its final possession with 3.3 seconds left. Knueppel took one last look at a three-pointer, but it rolled off the rim as the final buzzer sounded.