It only took 9 minutes for Cooper Flagg to crush Mavericks fans' biggest fear

It only took Cooper Flagg nine minutes of on-court time to drill his first NBA 3-pointer in Monday night's preseason opening game against the Oklahoma City Thunder, and he quickly obliterated any concern that he couldn't thrive as a shooter at the NBA level.

Flagg made a tough 3-pointer off the dribble from the right wing in the second quarter for his first made three, and he looked fearless when letting this shot fly.

A few minutes later, Flagg knocked down his second 3-pointer from the left wing off the dribble, and he looked extremely comfortable on this shot. He took advantage of the space that the defense gave him, rose up, and made the shot, and Mavericks fans will be hoping to see much more of this during the rest of the preseason and into the regular season.

Cooper Flagg's 3-point shooting won't be a weakness

In NBA Summer League in Las Vegas, Dallas Mavericks fans worried about Cooper Flagg's 3-point shooting as he shot 3-14 from downtown over the two games he played. Many of these threes were contested, as he was Dallas' lead ball handler, but fans were concerned that his hot 3-point shooting from college (38.5 percent from three as a freshman at Duke) wouldn't persist in the league.

Flagg proved that this concern wasn't serious, as he made his two threes, and he should end up being a reliable floor spacer in his first season in Dallas. As things stand now, it looks like Flagg will start alongside D'Angelo Russell, Klay Thompson, Anthony Davis, and Dereck Lively II, and he could find himself being one of the better shooters in this unit if he can keep up his strong shooting heading into the regular season.

He truly has no holes in his game, and anyone who tried to doubt his 3-point shooting before he played a game could end up being silenced if he can remain confident and collected as a shooter off the bounce.

Flagg ended up finishing with 10 points, six rebounds, three assists, and one block while shooting 3-6 from the field and 2-3 from three, simultaneously helping Dallas get out to a 66-40 lead at halftime before getting subbed out for the remainder of the game.

His performance started slow, but he quickly turned it on in the second quarter and showed the world why he is the best 18-year-old player on the planet. Flagg is ready to morph into a star as a rookie, and his 3-point shooting is one of the many strengths in his game that'll help him shine.