Rafael Nadal and Novak Djokovic have been the dominant figures on the Tour in the past 15 years, alongside Roger Federer. Beating Rafa and Novak at the same event has never been easy, and only 11 players had achieved that ahead of last week’s Madrid Masters.David Nalbandian earned that feat in Madrid 2007 as the first player. The other names on the list are David Ferrer, Andy Roddick, Nikolay Davydenko, Robin Soderling, Ivan Ljubicic, Roger Federer, Stan Wawrinka, Juan Martin del Potro, Dominic Thiem and Daniil Medvedev.Nalbandian, Roddick, Davydenko and Federer toppled Rafa and Novak on back-to-back days, but no one managed to de …