The main draw of the French Open, the second Grand Slam of the season, begins in Paris today. Top players like Novak Djokovic, Serena Williams, Roger Federer, Maria Sharapova, Rafael Nadal and Simona Halep are taking part in the tournament.World number two Roger Federer and world number three Simona Halep will be seen in action in their opening round matches today. While Federer will take on Alejandro Falla of Colombia, Halep will play Russian Evgeniya Rodina.