Cooper Flagg's 'unreal' Mavericks workout just utterly crushed his biggest critique

In less than a week, Cooper Flagg will officially become a Dallas Maverick as the 2025 NBA Draft will begin on June 25. Dallas won the Flagg sweepstakes after having just a 1.8 percent chance of winning the draft lottery, and the team took a major step in the pre-draft process this week as they welcomed Flagg to Dallas for his official visit, which lasted two days.

Flagg's visit included dinner with team officials on Tuesday and an assortment of players on Wednesday, and he thoroughly enjoyed both evenings, according to league sources. But his time on the court on Wednesday is what has Mavericks circles buzzing. Ahead of the draft, one of the biggest knocks against Flagg has been his jumper and being able to space the floor in a frontcourt that includes Anthony Davis and two rim-rolling centers in Dereck Lively II and Daniel Gafford, but he put that concern to rest in his first-ever Mavericks workout.

According to a league source, Flagg shot the ball "insanely well," burying jumper after jumper, during his hour-long workout at the Mavericks' practice facility, and he dazzled throughout. This source was blown away by what they witnessed from Flagg, stating that he was "even better" than they initially expected him to be.

Cooper Flagg's 3-point shooting is even better than expected

"Cooper was unreal in his workout," a league source told The Smoking Cuban. "He's a complete beast."

Flagg's versatility and completeness to his game are what have Mavericks fans so excited, and while he will have to prove that he can be an efficient shooter at the NBA level, his workout in Dallas left no doubt that he can do just that.

Flagg ended his freshman season at Duke strong as a 3-point shooter, as he shot 44.7 percent from downtown in the final 26 games of the season, which mostly includes ACC conference play, the ACC Tournament, and the NCAA Tournament, silencing the critics who doubted his jumper after he shot 22.2 percent from three over his first 10 games at Duke.

"(There were) no holes in his game," an anonymous ACC coach told The Smoking Cuban when asked about Flagg. "He just continues to make the right play over and over again."

While at Duke, Flagg showcased his ability to hit tough threes off the dribble or the catch, but his shooting off the catch is what the Mavericks will likely need most out of him. He may be forced to create for himself more while Kyrie Irving is out, but once Irving is back, his catch-and-shoot threes are going to be pivotal.

There are truly no holes in Flagg's game, and if he can keep up the great 3-point shooting like he did in Dallas during his pre-draft workout, the Mavericks will be golden. With Flagg likely to start at the three (or potentially the two if they keep P.J. Washington and want to start them both), they are going to need him to drill open shots and be an effective floor spacer, and while the NBA is a completely different ballgame with spacing and a deeper 3-point line, he is setting him up for success already.

Flagg's jumper has improved since his final game with Duke on April 5, as he shot the lights out during the 2025 NBA Draft Combine with every NBA team in attendance. He has been in the lab all summer long in Maine and Los Angeles, with league sources indicating the progress he has made physically and his overall game being evident since his final collegiate game.

Flagg's stellar pre-draft workout is just the start of his Mavericks journey, and all eyes will be on him in six days when Adam Silver announces that he'll be heading to Dallas.