My favourite sports anime are ;
- Kuroko No Basket ( I Love Basketball )
- Slam dunk ( Of course )
- Hajime No Ippo is amazing
I havent watched Haikyuu yet but i am planning to because of everyone saying its amazing :D
My favourite would have to be Asuna and Kirito
But Kuroko and Momoi are my favourites aswell but im not sure you can call them a couple ^^ ( Kuroko No Basket )