Venus Williams. The older sister of Serena certainly doesn’t grab as many headlines on or off the tennis court, but ranked #23, she is still a force. At 35 years of age, Venus is no longer a favorite to win a Grand Slam tournament, but she did reach the quarterfinals of the 2015 Australian Open, her first time getting that far in a Grand Slam since 2010. She could face Serena in the quarterfinals of the 2015 US Open.
