Rafael Nadal Parera is a Spanish professional tennis player who has been ranked World No. 1 since August 18 2008. He has won six Grand Slam singles titles and the 2008 Olympic gold medal in singles. He has captured the last four French Open singles titles, joining Björn Borg in 2008 as the only other man to have won four consecutive singles titles there. In 2008, Nadal became the second Spanish man to win Wimbledon. Nadal is only the third male player in the open era to have won the French Open and Wimbledon in the same year, and the first since 1980 (Borg). In 2009, Nadal became the first Spaniard to win the Australian Open. Since 2004, Nadal has had a storied rivalry with Roger Federer, which many consider to be among the greatest in tennis history.They are the only men in the open era who have played each other in seven Grand Slam finals,with Nadal
Who is the greatest grass court player?