Andy Murray, Serena Williams, Novak Djokovic, Heather Watson, Rafael Nadal and Madison Keys all in action on a busy day at Roland GarrosAnd email jacob.steinberg@theguardian.com or tweet @JacobSteinberg 9.30am BST Hello. This could be a day to remember. This day could be even better than the time you managed to fit a whole packet of Hula Hoops in your mouth.