Flagg has been tested during the first weeks of his college career, and the 17-year-old phenom still looks like the No. 1 pick in the 2025 NBA draft.

Duke star freshman Cooper Flagg scored 11 of his 13 points in the second half, but it wasn't enough as No. 1 Kansas defeated No. 11 Duke 75-72 in a thrilling nonconference game in Las Vegas on Tuesday.

Flagg and Duke had their toughest test yet Tuesday night against No. 1 ranked Kansas, where they came up just short and fell 75-72. Flagg had 13 points, five rebounds and three assists, but his highlight of the night was a massive slam dunk over Kansas' Flory Bidunga.

On that play, Flagg drove to the basket on big man Hunter Dickinson. Adams arrived to help and swatted Flagg’s shot. He tried to recover the ball but knocked it out of bounds. On the next Duke possession, Adams stopped a three-on-one fast break by swatting Kon Knueppel’s shot at the rim.

Potential NBA first-overall pick Cooper Flagg finished the loss with 13 points, five rebounds, three assists and one steal while shooting 5/9 from the field and 1/1 from the three-point range. Many people reacted to his performance.

Cooper Flagg set out to lead Duke basketball to a big win vs. No. 1 Kansas, but he could not quite pull it off

Kansas basketball head coach Bill Self had high praise for Duke’s freshman phenom Cooper Flagg ahead of Tuesday’s clash between the No. 1 Jayhawks and No. 11 Blue Devils in Las Vegas. Speaking about Flagg’s impact and skill set on Monday,

Cooper Flagg scored 24 points and No. 12 Duke picked up its first victory against a power-conference team this season by defeating No. 17 Arizona 69-55 on Friday night at Tucson, Ariz. Kon Knueppel scored most of his 13 points courtesy of three 3-pointers as Duke's top two scorers were freshmen in the team's first true road game of the season.

Duke freshman Cooper Flagg came alive in the second half against No. 17 Arizona, continuing to get Brooklyn Nets fans excited.