tennis

1. Novak Djokovic used to be the number one player, but now Murray is number one.

1.1. You have to win 2 sets to win the whole match.

1.2. If you win a set and and your opponent wins a set, then you have to play a tie breaker and whoever wins is the champion of the whole match.

1.3. Andy Murray is the number one player in the whole world

1.4. In the past Roger Federer used to be the best player in tennis, like he won all the grand slams. But when he got older a young player at the time, Novak Djokovic soon started winning some matches and soon faced Federer and he won and the next few times they played Federer kept losing against Djokovic.

1.5. In tennis the rule is that in the surv you have to surv to the deuce side.

1.6. You have to win 5 points to win a game