Which former professional tennis player had the highest individual ranking, Jim Grabb or Fabrice Santoro?
Jim Grabb Jim Grabb (born April 14, 1964) is an American former professional tennis player. He was ranked the World No. 1 doubles player in 1989 and in 1993. Grabb's best singles ranking was World No. 24, a ranking he achieved in February 1990.
Rolf Gehring Rolf Gehring (born 25 November 1955), is a former professional tennis player from Germany. He achieved a career-high singles ranking of world No. 37 in 1981.