Serena Williams Achieves Career Golden Slam, Plays Unbelievable Tennis Against Sharapova

American Serena Williams won her first Olympic singles gold medal after an astonishing performance against Russia’s Maria Sharapova in Saturday’s final of the 2012 London Olympic games. Williams, playing possibly her best tennis of this year, didn’t allow Sharapova hardly anything on her way to a breathtaking 6-0  6-1 victory. [...]