Was looking through his record, was surprised that he won Hamburg('68) Rome('69) & was RU at Monte Carlo('69) He lost to Okker in a 5 set QF at the '69 French. Laver & Rosewall are generally considered much better than him, partly due to their superior claycourt record, but it seems that he was very good on that as well. He didn't play the French during his best years('70-'72), due to a dispute between the ITF & WCT(I think). He also wasn't allowed to play Wimbledon '72/'73 after winning in '70/'71. I think he may be the most underrated player of the open era, who lost so many of best chances to win more slams because of politics. He could've been in the Mac/Lendl/Connors tier if he was given the same chances to play the big events.