Serena Williams of the U.S. celebrates winning her singles match against Daria Gavrilova of Russia during the second day of the WTA Qatar Ladies Open in
Serena Williams of the U.S. celebrates winning her singles match against Daria Gavrilova of Russia during the second day of the WTA Qatar Ladies Open in Doha, Qatar, Tuesday, Feb. 12, 2013. ((AP Photo/Osama Faisal))