Why is tennis is one of the most difficult sports in the world ?

Here are some parameters that show that tennis is one of the most difficult sports in the world. Part 1

1) The Timing

There are no time parameters in tennis compared to a soccer match which lasts 90 minutes, a draw in tennis does not exist,it is impossible to have two winners in a tennis match.

2) Coaching

coaching during the competition is not tolerated. It is only accepted during special events such as the Davis Cup for men and the Billie Jean King Cup for women.

3)Mental

Because it is a sport that challenges one to master coordination, stress, the environment, climate and their opponent. A fear of winning or losing, or what we call the mental; you can be able to lead 6/1 5/1 and lose the match, because the fear of winning gets into your mind. So you have to learn how to deal with this kind of situation.

4)The reason

To compete, you must have a positive rage to win.
What I would call showing what you are capable of and fighting to surpass your limits.
When we are on the field there is an opponent, but the only person we are fighting with is ourselves.