The key to a good serve?
When serving, reach up with your racquet hand just like you would for a can on the top shelf. That’s it; up on your toes and extend your arm as far as it will go. Full extension is the key to a good serve.
Written tips:
ߦ   The key to a good serve?
ߦ   Not consistent on your service release?
ߦ   Doubles: return of serve strategy