I have not seen the anime but I love the manga so much-I happen to find manga based on sports totally awesome referencing to American sports. If none of you haven't heard of these titles, I encourage to start with Harlem Beat before reading the sequel, Rebound. All three of these manga revolves around street and college basketball and footbal for Eyeshield 21. One of the things that makes me giddy from these are the outside lives of the students whether they're hanging out or just eating Pocky-please check these out!
Eyeshield 21-
Harlem Beat and Rebound-
Eyeshield 21-
Harlem Beat and Rebound-