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Rusty Costanza/Associated Press

Ceiling: MVP

Age: 19

Zion Williamson missed the first half of his rookie season to recover from knee surgery, but he hasn't missed a beat since making his debut in late January. The time off didn't lead to rust. Stronger and longer NBA bigs look just as helpless as the ones in college did.

Williamson could one day become the best player in the NBA.

No player has ever operated with as much force, quickness and explosiveness as Williamson. Power forwards and centers can't contain his first step. They can't reach as high above the rim to contest his finishes. And below the rim, he moves through them with his massive 284-pound frame.

Giannis Antetokounmpo didn't average at least 20 points until his fourth season. Williamson is averaging 21.0 points in 27.0 minutes (nine games) at 19 years old, without needing many offensive skills. He just went for a career-high 31 points against the Portland Trail Blazers on Tuesday night by leaning exclusively on his physical tools and athleticism for lobs, face-up moves, second jumps and putbacks.

What happens if he learns how to shoot? The potential is there, as he showed when he hit four three-pointers during his regular-season debut.

Williamson can also pass, which is just an added bonus to his repertoire.

Defense has been his biggest challenge early on, but he has monster defensive upside thanks to his mobility, strength and ability to react at the highest speed. While Luka Doncic and Trae Young hope to become at least average at this end of the floor, Williamson will be able to impact games with his defensive pressure and playmaking.

All statistics via Basketball Reference, NBA.com or Synergy Sports