Dear Tennis players, how do you hold a racket when serving? I’ve been told to put my knuckles on notch (is that what it’s called?) 2 When serving but I feel much more comfortable when putting my knuckles on notch 4.
Pls help

Which of the following is not true about a good stretching routine? a). can be hurried up once have it memorized b). improves issue elasticity and flexibility c). should last a minimum of five minutes d). prevents injury and increase athletic performance