Top Repeat Winners at Australian Open Author:SI StaffPublish date:Jan 12, 2012Top Repeat Winners at Australian Open Margaret CourtAFP/AFP/Getty Images (pictured at 1970 Wimbledon) Roy EmersonDennis Oulds/Central Press/Getty Images (pictured at 1964 Wimbledon) Serena WilliamsDavid Callow/SI (pictured at 2007 Australian Open) Roger FedererDavid Callow/SI (pictured at 2006 Australian Open) Steffi GrafHeinz Kluetmeier/SI (pictured at 1991 Australian Open) Andre AgassiBob Martin/SI (pictured at 2003 Australian Open) Monica SelesBob Martin/SI (pictured at 1996 Australian Open) Evonne GoolagongTony Triolo/SI (pictured at 1972 Virginia Slims) Mats WilanderGetty Images (pictured at 1987 US Open) Martina HingisBob Martin/SI (pictured at 1997 Australian Open) Martina NavratilovaManny Millan/SI (pictured at 1985 U.S. Open) Rod LaverWalter Iooss Jr./SI (pictured at 1969 US Open) Novak DjokovicAntoine Couvercelle/DPPI/Icon SMI (pictured at 2011 Australian Open)Latest NewsNovak Djokovic Suffers Unexpected Defeat in Indian Wells vs. 20-Year-Old Luca NardiTennis Q&A: Anti-Doping Lawyer Howard Jacobs on Simona Halep’s CaseRafael Nadal Withdraws From Indian Wells Before Playing in First RoundMailbag: The Aftermath of Andrey Rublev’s On-Court Outburst and DefaultSimona Halep’s Ban Reduced: What It Means for Tennis’s Anti-Doping Policy