About Mark Cox (tennis)
Mark Cox is a former tennis player from England, who played professional and amateur tennis in the 1960s, 1970s and 1980s. He was ranked as high as world No. 12 on the ATP rankings, achieving that ranking in October 1977. During his career, he won twenty-four singles titles and three doubles titles spanning both the pre-Open Era and Open Era, and reached the quarterfinals of the U.S. He won 23 of his Davis Cup matches and lost 12. He remarked afterwards that "At the big points I played the right shots, the first services were going in.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.