By Madison Williams “The Big Four” have won all but 10 Grand Slam titles since Federer won Wimbledon in 2003. View the original article to see embedded media. “The Big Four” in men’s tennis will be teammates for the first time in their careers at this year’s Laver Cup. With the Friday announcement that Novak Djokovic would join the team, he will partner with Rafael Nadal, Andy Murray and Roger Federer. They earned “The Big Four” nickname because they’ve won all but 10 Grand Slam tournaments since Federer won Wimbledon in 2003. Nadal has the most Grand Slam titles to his name with 22 after winn…