2011 Australian Open was taken from the "Serena Slam" which was coined when Serena Williams won all four Grand Slam titles in a row spanning two calendar years, which in turn was taken from the "Tiger Slam" in which golfer Tiger Woods accomplished a similar feat in golf. Nadal was the number one seed and led the field. The other top ten seeds were; sixteen time Grand Slam champion, Roger Federer, 2008 Australian Open winner Novak Djokovic, two time Grand Slam finalists Robin Söderling and Andy Murray, Wimbledon runner up Tomáš Berdych, David Ferrer, 2003 US Open champion Andy Roddick, Fernando Verdasco and
2011 Australian Open record breaking as it was the largest amount of spectators to have attended on one day. The men's and women's singles draw of the 2011 Australian Open seeded the top thirty-two players who were not injured. The seeds were set on the ranking system's that the Association of Tennis Professionals and the Women's Tennis Association use; so the top thirty-two players seeded were the top thirty-two players according to their rankings. Tennis Australia awarded eight wildcards for the men's and women's professional singles competitions. Former Australian Grand Slam champions, Pat Rafter and Todd Woodbridge helped to select the four discretionary