There are two types of serve that a player cannot return, one is an Ace and one is just called Unreturnable. An Ace is when the returner cannot get their racket to the ball at all. An Unreturnable is when the returner touches the ball, but cannot return it within the court.
There ISN'T anything called a "backhand serve" in tennis.
To serve in tennis, is to hit a tennis ball with your racquet, aiming to score against an opponent.
A big serve is when you the serve with a lot of power.
A tennis serve is out if it hits the green without hitting the main court, or if it hits the net
A tennis game starts with a serve.
There are four types of serves in tennis: The Flat Serve, The Slice Serve, The Kick Serve, and the American Twist.
Almost all of your joints are used in tennis, but the main ones in a tennis serve are the knee joints, and elbow joints.
When the first serve is a let.
andy roddick in mens tennis