There are four main tennis tournaments each year. What are these collectively known as?
In tennis, a serve that goes out or doesn't get over the net is called?
When was Roger Federer started playing tennis?
What part of the body can go before the word "fault" to make the name of a real infringement encountered in tennis?
In baseball, a batter is out if the umpire calls?
Which grand slam tennis tournament is played on grass courts?
What is the name of the area on which the game of tennis is played?
In which sport can you win the Davis Cup?
What is the name of Federer's foundation?
What colour is a standard tennis ball?