There have been 56 Grand Slam events since the start of 2004. Forty-six of those tournaments have been won by Roger Federer, Rafael Nadal or Novak Djokovic. Stan Wawrinka and Andy Murray have combined for six more. Four players—Gaston Gaudio, Marat Safin, Juan Martin del Potro and Marin Cilic—have each won one of the remaining events.
The Big Three’s dominance should have ended a long time ago, and yet here we are: Roger Federer, 36, and Rafael Nadal, 31, combined to win all of last year’s Slams. But to the casual tennis fan who watches four tournaments every year, I assure you: There are other male professional tennis players out there, and I think there's a better-than-usual chance we'll see one of them win this year's Australian Open.