Roger Federer, Novak Djokovic and Andy Murray have shown up at the French Open to participate in a ceremony honoring 14-time tournament champion Rafael Nadal.

As his tennis contemporaries continue to head off into retirement, Novak Djokovic is being faced with the reality that his time on the professional courts, too, will come to an end.  Ahead of his first-round matchup with American Mackenzie McDonald on Tuesday at the French Open,

Nadal, a 14-time Roland Garros champion whose record may never be surpassed, was honored by tennis rivals Novak Djokovic and Roger Federer.