Tennis star and Jupiter resident Serena Williams says her career is “evolving away.”

Williams penned a letter to Vogue Magazine that was shared Tuesday saying it was time for her to walk away.

“I’m terrible at goodbyes, the world’s worst,” Williams said. “But please know that I am more grateful for you than I can ever express in words. You have carried me to so many wins and so many trophies.”

The 40-year-old champion says she wants to spend more time with her family. The 23-time Grand Slam champion has a daughter with Reddit co-founder Alexis Ohanian and says she would like to have more children.

“Believe me, I never wanted to have to choose between tennis and a family,” she added. “I don’t think it’s fair. If I were a guy, I wouldn’t be writing this because I’d be out there playing and winning while my wife was doing the physical labor of expanding our family. Maybe I’d be more of a Tom Brady if I had that opportunity.”