High school phenom LeBron James will soon sign a fat sneaker contract. But not every big-dollar bet on an NBA star has worked:
Poor sales prompt Bryant and Adidas to part ways. Bryant is currently without a shoe contract.
Injuries slowed Hill -- and sales -- after he signed a seven-year, $80 million contract.
Poor sales forced Nike to cancel his "Air Max Duncan" brand, putting Duncan's name on floor model.
Split with Reebok following weak sales. Starter now makes Shaq shoes for Kmart and Payless.