Roger Federer and Rafael Nadal are the only players with 70 matches played at a single Masters 1000 event. Roger has achieved that in Indian Wells and Miami, and Rafa added his name to the list with a notable performance in Monte Carlo, Rome and Indian Wells.Two legends stand on 79 matches at their most productive Masters 1000 tournaments, with Federer reaching that number in Indian Wells and Nadal in Monte Carlo. Nadal could become the only player with 80 encounters at a single Masters 1000 event this week in Monte Carlo.Still, he could not compete at one of his favorite stops on …