Paris: World No 1 Novak Djokovic and defending champion Rafael Nadal stayed on course for a French Open quarter-final yesterday as teenager Thanasi Kokkinakis provided a glimpse into the sport's future.


Novak Djokovic receives medical treatment during his French Open second round match against Luxemburg's Gilles Muller yesterday 

Top seed Djokovic survived a worrying injury scare to reach the third round with a 6-1, 6-4, 6-4 win over Gilles Muller of Luxemburg.