American professional tennis player Serena Williams has announced her upcoming retirement from tennis as she admitted she is “evolving away” from the sport.

Williams made the announcement in a Vogue magazine article that was published on Tuesday morning.

“I’m here to tell you that I’m evolving away from tennis, toward other things that are important to me,” Williams wrote. “A few years ago, I quietly started Serena Ventures, a venture capital firm. Soon after that, I started a family. I want to grow that family.”

Williams, 40, has won 23 grand slam titles — the most in the Open Era and one short of Margaret Court’s all-time record.

The tennis queen not only dominated the women’s game but she has continued to be at the forefront of the international sporting landscape as a mother, icon, and leader.

Williams, who won her first match in over a year on Monday at the National Open in Toronto, confirmed that she would play at the US Open in Flushing Meadows at the end of the month. That will be her last grand slam event.