Former 18-time Grand Slam champion Chris Evert thinks Rafael Nadal’s enforced time off is a “bonus” as she says the Spaniard can now rest and enter the French Open well rested and probably fully healthy. In Indian Wells, Nadal sustained a stress fracture in one of his ribs. In his announcement, Nadal said he would likely be out for four to six weeks. Three weeks have nearly passed since the announcement as Nadal won’t be playing in Monte Carlo next week. Next tournament on Nadal’s schedule is the Barcelona Open, which starts on April 18. However, it’s hard to imag …