3 / 16

Victoria Azarenka, of Belarus, reacts while playing against Serena Williams during the championship match at the 2012 US Open tennis tournament, Sunday, Sept. 9, 2012, in New York. (AP Photo/Darron Cummings)

Victoria Azarenka, of Belarus, reacts while playing against Serena Williams during the championship match at the 2012 US Open tennis tournament, Sunday, Sept. 9, 2012, in New York. (AP Photo/Darron Cummings)

Serena Williams wins fourth U.S. Open

January 1, 1970

No. 4 Serena Williams won the first set and held on in the third to defeat No. 1 Victoria Azarenka 6-2, 2-6, 7-5 on Sunday in the women's singles final of the U.S. Open at Flushing Meadows. Williams continues to dominate after her gold-medal run in the 2012 London Olympics.