Post-Match: Serena Williams In Tears

Serena Williams gave an emotional speech after what was likely her final tennis match Friday night, an over-three-hour 7-5, 6-7 (4), 6-1 loss to Ajla Tomljanovic in the third round of the US Open.

"Thankyou daddy, I know you're watching. Thanks mom," Williams said before starting to cry during her postmatch interview. "Everyone that's here, that's been on my side, for so many years, decades

"These are happy tears, I guess. I don't know. And I wouldn't be Serena if there wasn't Venus, so thank you Venus. She's the only reason Serena Williams ever existed ...

It's been a fun ride. It's been the most incredible ride and journey I've ever been on."

Williams, 40, first mentioned her impending farewell to the sport in a Vogue essay posted during the Canadian Open last month, citing her desire to have another child.

In the piece, she said she preferred the word "evolution" instead of "retirement" and acknowledged how difficult it was to come to the decision.

When asked if there was any chance she would reconsider walking away, she smiled. "I don't think so, but you never know."