Tennis is all about timing.

Deciding to pursue a pro career can happen at all different times for talented juniors.

Watch: Dimitrov Discusses Game, Goals

Feliciano Lopez, Grigor Dimitrov and Milos Raonic each recall their career epiphanies in a series of video interviews posted on Facebook by Wilson, the racquet sponsor of the trio.

"There is this moment where you think I might be a professional tennis player," says Lopez, whose father is a teaching pro.



Dimitrov, who is also the son of a tennis instructor, was "around 11 or 12" when he made the life-changing commitment.



Raonic's relationship to the sport was love at first sight.





Photo credit: Swiss Open Gstaad