Has Sue Barker or Fabio Fognini been held the highest world ranking in tennis?
Sue Barker: Susan Barker, OBE (born 19 April 1956 in Paignton, Devon) is an English television presenter and former professional tennis player. Fabio Fognini:  His career-high singles ranking is world No. 13, achieved in March 2014, and world No. 7 in doubles, achieved in July 2015.
i don't know