Originally specifically for amateur athletes, the Olympics began allowing professionals to compete in 1986.
Jesse Owens
Athlete who does it for a living.
That athlete is called a professional.
jessica ennis is a profetional athlete
no diference
A Sportsman but it some people say it by the sport they do for example If someone played football you may call them a football player If someone was in the olypmics you may call them an athlete ect
Serena and Venus made it to the olymipics
Tim Lincecum
Yes
professional athlete
a lot
There are many things about professional athletes to know, if that's what you mean.