Images from Tuesday's action at the Australian Open
Top seeds Serena Williams and Novak Djokovic begin play
Ajla Tomljanovic of Australia makes a forehand return to Shelby Rogers of the U.S. in their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 20, 2015.Lee Jin-man/The Associated Press
Serena Williams plays a shot during her women's singles match against Belgium's Alison Van Uytvanck on day two of the 2015 Australian Open tennis tournament in Melbourne on January 20, 2015.WILLIAM WEST/AFP / Getty Images
Ukraine's Illya Marchenko walks on the court as he plays against Canada's Milos Raonic during their men's singles match on day two of the 2015 Australian Open tennis tournament in Melbourne on January 20, 2015.MAL FAIRCLOUGH/AFP / Getty Images
Australia's Lleyton Hewitt shouts during his men's singles match against Zhang Ze of China.MANAN VATSYAYANA/AFP / Getty Images
A young fan poses against an oversized tennis ball as Japan's Kimiko Date-Krumm plays against Anna Tatishvili of the US during their women's singles match on day two of the 2015 Australian Open tennis tournament in Melbourne on January 20, 2015.PAUL CROCK/AFP / Getty Images
Canada's Milos Raonic poses for a selfie with fans after his victory against Ukraine's Illya Marchenko.MAL FAIRCLOUGH/AFP / Getty Images
France's Lucas Pouille celebrates winning a point during his men's singles match against compatriot Gael Monfils.WILLIAM WEST/AFP / Getty Images
France's Gael Monfils plays a shot during his men's singles match against compatriot Lucas Pouille.WILLIAM WEST/AFP / Getty Images
France's Gael Monfils plays a shot during his men's singles match against compatriot Lucas Pouille.WILLIAM WEST/AFP / Getty Images
Japan's Kimiko Date-Krumm serves against Anna Tatishvili of the US during their women's singles match.PAUL CROCK/AFP / Getty Images
Zhang Ze of China plays a shot during his men's singles match against Australia's Lleyton Hewitt.MANAN VATSYAYANA/AFP / Getty Images
Italy's Camila Giorgi reacts as she plays Italy's Flavia Pennetta during their women's singles match on day two of the 2015 Australian Open tennis tournament in Melbourne on January 20, 2015.PAUL CROCK/AFP / Getty Images
A lineswoman watches as France's Julien Benneteau plays during his men's singles match against Germany's Benjamin Becker.GREG WOOD/AFP / Getty Images
Japan's Kimiko Date-Krumm takes a break as she plays against Anna Tatishvili of the US during their women's singles match on day two of the 2015 Australian Open tennis tournament.PAUL CROCK/AFP / Getty Images
Novak Djokovic of Serbia signs autographs after defeating Aljaz Bedene of Slovenia.ATHIT PERAWONGMETHA/Reuters