The summary is:
A boy who lives in an orphanage gets a pair of sneakers that he believes belonged to Michael Jordan and make him a basketball superstar. He joins a professional team and becomes friends with their star player, who wants to adopt him. However, he also faces challenges from his greedy caretaker and some bettors who want to sabotage his game. In the end, he realizes that the sneakers were not magic and that he had the talent inside him all along. He also finds a family with his friend and his father.
Here are the key facts extracted from the text:
1. Calvin is an orphan boy who loves basketball and lives in the Chesterfield orphanage.
2. Calvin receives some old sneakers that he believes belonged to Michael Jordan and they make him a basketball superstar.
3. Calvin is hired by the Knights team to play with them and he travels with them, sharing a room with Tracy Reynolds, the star player.
4. Calvin's sneakers are actually not magic, but he thinks they are and he keeps them hidden from Bittleman, the caretaker of the orphanage who wants to exploit him.
5. Calvin helps the Knights win several games, but he also faces some problems with schoolwork, rival teams, and his adoptive parents.
6. Calvin decides to stop playing basketball and return to the orphanage, where Tracy reveals that he wants to adopt him as his brother.
7. Bittleman loses a bet and gets in trouble with some thugs, while Calvin finds a new family with Tracy and his father.