Training記事一覧
JAPANESEYou don’t have any friends to practice with, but you want to practice.Anyone who wants to improve their tennis will think so.Would you like to practice alone at home, progress in tennis and pr...
JAPANESEEven if the other shots get better,Only serve does not improve,I think there are many people who say that.Players who do not improve their serve no matter how much they practice may not have t...