He achieved a career - high singles ranking of World No. 47 in June 1985 and a career - high doubles ranking of World No. 29 in November 1988 .
During his career Davis won 4 singles titles and 4 doubles titles .
Davis achieved a career - high singles ranking of World No. 47 in June 1985 and a career - high doubles ranking of World No. 29 in November 1988 .
During his career Davis won 4 singles titles and 4 doubles titles .