Roger Federer and Rafael Nadal will meet in the French Open semi-finals in what will be their first encounter at Roland Garros since the 2011 final. But just how much do you know about two of the sport's greats?
Roger Federer and Rafael Nadal will meet in the French Open semi-finals in what will be their first encounter at Roland Garros since the 2011 final. But just how much do you know about two of the sport's greats?