Renowned tennis coach Patrick Mouratoglou is curious to see how will Rafael Nadal perform at the French Open as he acknowledged that the Spaniard won’t have a perfect preparation for the second Grand Slam of the season. Nadal, 35, sustained a stress fracture in one of his ribs in Indian Wells. The injury sidelined Nadal for a month and a half as he was forced to skip the beginning of the clay season and events in Monte Carlo and Barcelona. Nadal usually plays four events before the French Open but this year he will arrive with only two tournaments played prior to R …