Serena Williams is probably playing the best tennis of her illustrious career right now. She battled her way to a Wimbledon championship about a month ago, and now she's added a gold medal to the trophy case following a dominant performance against Maria Sharapova.
Williams' win was the most one-sided victory in Olympic history. After a perfect 6-0 sweep in the first set, Williams served and sliced her way to a 6-1 second set to clinch a victory. No matter what different strategy or tactic Sharapova used, she was simply outmatched by the power and speed of Williams.
The win gives Serena the golden slam -- winning a gold medal, Wimbledon, the U.S. Open, the French Open and the Australian Open -- something achieved just one other woman in tennis history.
Check out SI's complete medal tracker here.