Age Quote by Garbine Muguruza

As a kid, I wanted to be a pro tennis player. I was pretty good; at the tennis academies I attended, I always 'played…

— Matt Kuchar

I felt I could play in maybe a dozen tournaments a year as an amateur.

— Matt Kuchar

Since I was like eight, I always wanted to be playing pro tennis.

— Frances Tiafoe

I turned pro as a 20-year-old, won a world title a year later, and remained a world champion ever since.

— Floyd Mayweather, Jr

We play in so many different countries. I've been in so many countries as a junior and as a pro.

— Daniil Medvedev

I have been professional since I was 15 years old and have been competing against some of the best European players and ex-NBA players.

— Luka Doncic

You cannot just play tournament after tournament like maybe I did when I was 23, 24 years old.

— John Isner

I played tennis when I was younger. I don't know if I could have been a professional, but I am still passionate about it.

— Hugo Lloris

Of course I will turn professional at some stage. Then I want to be a world champion and finish up a legend and be…

— Amir Khan

When I went to Spain, it was a risk because I was really young. But I quickly learned the game, and I grew as…

— Gonzalo Higuain

I knew I was going to play pro tennis when I was 12.

— Frances Tiafoe

When I was about 16, I started to believe I could play professionally. I worked hard and focused more.

— Marouane Fellaini