With her dramatic three-set victory over world No. 1 Victoria Azarenka in the U.S. Open final, Serena Williams now owns 15 Grand Slam singles titles, putting her three behind Chris Evert and Martina Navratilova (18), seven behind Steffi Graf (22), and nine behind Margaret Court (24).

The 30-year-old Williams is committed to play the WTA Premier tournament in Beijing in October, as well as the WTA Championships in Istanbul, and has a chance to retake the No. 1 ranking at the end of the year.

"I cannot believe that she will lose her motivation," one of her coaches, Patrick Mouratoglou, said. "She really feels she can win every tournament. This feeling keeps her motivation."

Williams added, “My motivation is so up there. I'm so motivated to just stay focused. I just feel like I'm ready for the next tournament. I really want to be focused and do well there and just keep the dream alive.”