Serena Williams announced her tennis career is winding down, citing her desire to grow her family. Williams shared her thoughts about her future in a first-person essay on on Tuesday, suggesting the US Open could be her final tournament

She admitted she had mixed feelings about her next chapter and didn't even like using the word "retirement," instead opting for "evolution." "I've been reluctant to admit to myself or anyone else that I have to move on from playing tennis,"

Williams wrote. "Alexis [Ohanian], my husband, and I have hardly talked about it; it's like a taboo topic. I can't even have this conversation with my mom and dad. It's like it's not real until you say it out loud.

"It comes up, I get an uncomfortable lump in my throat, and I start to cry. The only person I've really gone there with is my therapist! One thing I'm not going to do is sugarcoat this.

Williams, 40, is currently playing at the Canadian Open, and won her first match in 14 months on Monday to advance to the second round. She is slated to play the Western & Southern Open next week,

"Unfortunately I wasn't ready to win Wimbledon this year," Williams said in the essay. "And I don't know if I will be ready to win New York. But I'm going to try. And the lead-up tournaments will be fun.

"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," Williams said.