Who had the highest singles ranking Tomáš Šmíd or Ross Case?
Ross Case Ross Case (born 1 November 1951) is an Australian former tennis player. His career-high singles ranking was world no. 14.
Sébastien Grosjean Sébastien René Grosjean (] ; born 29 May 1978) is a retired tennis player from France. His career-high ATP singles ranking was world No. 4, achieved in October 2002. Grosjean retired from tennis on 27 May 2010.