"I'm in the best shape I've ever been"
A sports preseason tradition unlike any other.
Yeah, this is my worry with Zion. He does look great in the photos. It is probably true that at this current point in time, he is in much better shape to play NBA basketball than in past seasons where he appeared overweight. But his track record, 7 wasted NBA seasons, is not good.
He is a tough one to peg. He could play at an all NBA level the next 10 seasons, or he could have 10 more seasons (or less) like the first 7, or worse. It appears that the arrow is pointed in the right direction right now, but who knows.