True, but Rafa and Nole have not had a younger challenger nipping at their heels. As a Fed fan, ever since Nadal beat Fed for the 3rd time at the FO and pushed Fed to 5 sets in the 2007 Wimby final, I was fearful that this YOUNG and proven contender was going to stop Fed dead in his tracks. So far, there hasn't been anyone who is legitimate contender who not only threatens Nadal with his game but also with mother time on their side. Thiem is slowly starting to apply that pressure at the FO, but he hasn't won yet, and Medvedev pushed Rafa to 5 sets at the USO this year so that pressure is FINALLY coming. But whatever pressure Thiem, Medvedev and others are applying is still a VERY long way from what Fed faced back in 2007-2008 onward from Nadal and Djokovic, who were consistently making it deep in every tournament.