Jonny Mac as he was famously called is one of the greatest ever tennis players. Apart from his 7 Grand Slams, the fiery American won 19 Masters Events in his Career.
Due to his serve and volley style McEnroe won an overwhelming majority of his titles on fast courts. 5 of his 19 Masters titles came at London Open and 4 each at Stockholm and Philadelphia. All these three venues were later discarded when the Masters Series was renamed and restructured in 1990 as Masters 1000.