Cooper Flagg may need a new gym again
Yahoo Sports · September 23, 2026

First, many fans think that he's grown significantly. And at 19, that's certainly possible. He entered the NBA at 6-9. If he's now 6-10 or 6-11, with his mobility and skills, he's that much more of a problem.
But that's only part of the problem the rest of the NBA faces: according to his trainer, Matt MacKinzie, Flagg has put in the work to be significantly improved this season.
You can be sure he put a lot of time in the weight room as well. If he's up to, say, 220, that would mean he's gained 15 pounds. If he's grown taller as well, he's going to cause a lot of problems. And if he has improved his outside shooting, he's going to be a nightmare.
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