SLAM DUNK: ROAR!! BASKET MAN SPIRIT

Ichiro Mizusawa, a player from Rukawa's old junior high school, Tomigoaka, is diagnosed with a crippling leg condition and wants to play one last game with Rukawa. Hanamichi sets out to help the boy and fulfill his wish. (Source: Anime News Network) — Description from AniList community (anilist.co).