At least when it comes to her fashion choices .
But one thing is pretty clear : Williams was much more daring as a 21 - year - old who completed the Serena Slam in 2003 at the Australian Open .
At least when it comes to Williams ' fashion choices .
But one thing is pretty clear : Williams was much more daring as a 21 - year - old who completed the Serena Slam in 2003 at the Australian Open .