I like and respect the players who let their racket do the talking on court rather than talking nonsense off court (Homaei, former Iran's U18 Tennis coach, 1997).

We deserve to win because we are able to perform well under pressure (Ali Daei, the world's all-time leading goal scorer, 2005).

The best thing that I learned from working with Sir Alex was that at the beginning of the each season he used to tell all the players that regardless of what happens in the season no one is allowed to get nervous (Carlos Queiroz, Iran's football coach in 2014 World Cup, 2011).

In the 21st century where money and power are two most important things in the world, there are still two things which can make this world a better place to live in: 1. Sports such as Football and Tennis. 2. Love (A Ghotbi, Shimizu S-Pulse Football Head Coach, 2011).

Why is it always me? (Mario Balotelli after scoring for Manchester City, 2012)

I have missed more than 9000 shots in my career, I have lost almost 300 games. 26 times, I have been trusted to take the game winning shot and missed. I have failed over and over and over again in my life. And that is why I succeed. (Michael Jordan, 2012).

Sometimes you are just happy playing. Some people, some media, unfortunatley, do not understand that it is OK just to play tennis and enjoy it. They always think that you have to win everything, it always needs to be a success story and if it is not, obviously, what is the point? may be you have to go back and think, why have I started playing tennis? because I just like it. It is actually sort of a dream hobby that became somewhat of a job. Some people just do not get that, ever (Roger Federer, 2012).

Working hard during the training is the key to win (Carlos Queiroz, 2013).

Your shot is not finished till you recover to the middle of the court (Stan Orlans, 2013). 

You can teach a player advanced techniques and tactics but you cannot teach someone how to win (Gomez, 2013).

I would rather have the body of an used car with a 350 horsepower engine than the body of a Ferrari with a 50 horse power (Marion Bartoli, after winning Wimbledon ,2013).

No matter how great a coach is, but first they are a human and then a coach. Humans have emotions and coaches like others sometimes cannot control their emotions (H Rezaei, 2014).

You will win a point in Tennis, if you can get the ball over in one more time than the person on the other side of the net (James Auckland, former Great Britains player, 2014).