Foot Fault!
Calling all the lines of professional tennis
WTA Championships – Istanbul 2011 – Day Three
ISTANBUL, TURKEY – OCTOBER 27: Li Na of China reacts to a lost point while playing Victoria Azarenka of Belarus during round robin play of the TEB BNP Paribas WTA Championships Istanbul at the Sinan Erdem Dome on October 27, 2011 in Istanbul, Turkey. (Photo by Matthew Stockman/Getty Images)
