`Single` Serena Williams reveals heartache

London: While Venus Williams battles an incurable autoimmune disease, her younger sister Serena has her own problems that cause her heartache too.

The 30-year-old is concentrating on winning Wimbledon again because there is no man in her life.

“I have bad luck in love. Now I believe that if something doesn’t work out, it’s best to leave it alone. I have,” the Daily Express quoted her as saying.

“I think I have a better commitment to tennis in general now. I love being on the court and taking inspiration from what Venus is doing.

“Playing tennis now is what I live for. After some of the things I have suffered, I just appreciate every moment of playing the game,” she added.