While analyzing Grigor Dimitrov at the 2013 French Open, tennis commentators Cliff Drysdale and Brad Gilbert pondered if a person who copied greatness could become great themselves.
Called "Baby Fed," the 22-year-old Dimitrov has studied Roger Federer's game and reproduced his strokes. But is that enough to make him as great as Federer?
No. Surely other girls have grown up trying to copy Serena Williams' serve or Justine Henin's backhand. If it were merely mechanics, more players could pull it off.
What separates great tennis players from the rest of the pack?
It's more than hard work and athletic ability.
The greats ones, those who push themselves beyond their peers, seem to possess at least five common traits.