Making it to the Olympics means you are one of the best in the world at your sport. Although in ping pong it sometimes appears like they may have just brought the people who are the best in the world at staring intensely at ping pong balls.
"You will go where I told you to, or I will kill you."
"Miss you already, little guy."
"Dad? Is that you in there?"
"WHAT DID YOU SAY TO ME?"
Or maybe they bring the players with the strongest telekinetic powers.