Which tennis player reached a higher World ranking in doubles, Slobodan Živojinović or Elena Vesnina?
Slobodan Živojinović Slobodan "Boba" Živojinović (, ] ; born on July 23, 1963) is a retired Serbian tennis player who competed for SFR Yugoslavia. Together with Nenad Zimonjić he is the only tennis player from Serbia to be the World No. 1 in doubles. As a singles player, he reached the semi-finals of the 1985 Australian Open and the 1986 Wimbledon Championships, achieving a career-high ranking of World No. 19.
Nuno Marques Nuno Miguel Bacelar de Vasconcelos Marques (born 9 April 1970 in Porto, Portugal) is a former Portuguese tennis player. He was the first Portuguese to reach the top 100 ATP rankings and held the record of highest ranked Portuguese player in history until Frederico Gil surpassed him in 2009. However, he still is the highest ranked Portuguese doubles player in history reaching a career high of no. 58.