Serena Williams hints she could call it quits moment Venus decidesto hang up her racket

Serena, 34 , equalled Steffi Graff’s total of 22 Grand Slam titles by beating Angelique Kerber 7-5 6-3 on Saturday, and now stands just two wins away from equalling Margaret Court’s all-time record of 24.
But once 36-year-old Venus , with whom Serena went on to win the ladies' doubles on Saturday evening, ends her time on the tour then her younger sister could follow suit.

Serena said: “It would be hard to carry on playing if she retired.
“Who knows? But she is definitely my backbone on this journey we have been on for a really long time. Hopefully she won’t be retiring soon.
“It would be so weird going to Grand Slam tournaments and not seeing her around, but I know she absolutely loves being out here and sometimes is like, ‘Wow, I really, really love it’.”