Serena is 19-12 all-time against Venus, including 11 wins in majors and a 7-2 mark in Grand Slam finals. There was a stretch from 2002-03 where the Williams sisters played each other in the championship round of five straight majors, including twice at Wimbledon.

Venus Williams is back on the tennis scene, ready to compete for the first time in more than a year, and while she smiled or laughed frequently Sunday while discussing her return at the DC Open, there was something that would make her even happier: if her younger sister Serena were along for the ride.