This is (IMO) the best example in sports anime/manga of characters who are "rivals" but push each other to greater heights.
Ippo and Miyata
Onoda and Manami
Hinata and Kageyama
Sakuragi and Rukawa
Isagi and Barou (in a sense lol)
The ones above are good but I enjoy Bungo and Noda way more lol
