Johnny Mac was one of the greatest players of all time, he was great in an era with min. 3 other greatest of all time, Borg, Connors and Lendl and he was number one, his alltime greatness you can see in his all tournament record of 154 in singles and doubles, 26 tournament he won in singles and doubles together, no other greatt player of the open era did so, neither sampras nor borg. Sampras will be the greatest single men player but Mac was the top of the tennis greates time of the late 70'ies and early 80'ies in which time where the greatest sum of greatest matches and players where active. The golden age of tennis and Mcenroe was on top.