I'm always very bad at sports quizzes but I was disappointed that a few that I actually knew didn't show up here. Like Karl "the Mailman" Malone, or Jason Williams aka White Chocolate.
He's has many nicknames over the past years. I don't usually like Jalen Rose's nicknames for players, but he calls him Iceberg Slim, which I don't hate at all. There's also Durantula, The Servant and others.
Maybe this is intentional, but when you type in "dr j" it gives you credit for the answer. Seemed like a bit of a giveaway. Not sure why I tried it but I was surprised that it worked.
Shaq had many nick-names, many self-ascribed, and The Big Aristotle is probably not in the Top 3 of those most associated with him, but many of them have "Shaq" in them and are thus less suitable for a quiz. "The Mailman", "The Glove", "The Worm", "The Admiral", "The Black Mamba", "The Black Hole", so many good options.
I'll stick with KD.