Mutua Madrid Open - Day Five [Getty Images]

MADRID, SPAIN - MAY 06: Serena Williams of the United States plays a backhand against Victoria Azarenka of Belarus in their third round match during day five of the Mutua Madrid Open tennis tournament at the Caja Magica on May 6, 2015 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill