Responses
One-outs! It has an anime (of course if you prefer reading it has a manga) but the MC is so skilled in mind-games that he dusts his opponents easily.
Major (it has a typical prodigy-MC)
SK8 the infinity
The boxer (manhwa)
Double Click (webtoon, e-game, MC was the top-rank player at the beginning)
The king’s avatar (webcomic, manhua & novel).
Anything similar to https://www.mangago.zone/read-manga/prince_of_tennis/ , Id prefer a manwha than manga rn but any would do as long as it basically follows a story where the Mc is already skilled in the sport they play