If you want to win the tennis game, you have to take care of your ra cket.
As well as tennis, all sport games need confidence in order to overcome pressure.
It is a mortal to lose the judgment owing to bearish.
It is easy to produce fake of yourself who have a lot of confidence, but you can get real confidence only by piling daily efforts.
Speaking about tennis, you have to believe your racket in addition to yourself.
During the game, I sometime check my racket to confirm whether the gut properly attached to the racket, the grip wet and so on.
At that time, I can not believe in my racket. Then I lose confidence and a match.
Keeping your equipment clean bring you confident.