US tennis freak who was known for his love of the game and his philosophy, 'If I can't play for big money, I play for a little money. And if I can't play for a little money, I stay in bed that day.'
He was a great ping pong player before he became a great tennis player.
He was the World No. 1 or the co-World No. 1 tennis star for three years, initially as an amateur and later as a professional.
He fathered six children with two different wives.
He was defeated by women's tennis pro, Billie Jean King .