Serena Williams in brutal Ajla Tomljanovic truth after retirement

Serena Williams has revealed she wasn't happy how she bowed out at the US Open after her defeat to Australian Ajla Tomljanovic in her retirement tournament. The 23-time grand slam champion announced ahead of her home grand slam that she would be playing moving away from tennis after a trailblazing career in the sport.

Williams went on to win her first two match at Flushing Meadows, but wasn't able to overcome the in-form Aussie Tomljanovic in the third round. Tomljanovic was all class after her 7-5, 6-7, 6-1 victory and stood back to allow Williams to have her moment in the spotlight as she farewelled the sport after more than two decades.

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However, more than four months after her exit from the US Open, Williams has admitted she was "not very happy at all" about the way her extraordinary career ended at last year's US Open. When asked on CBS how she felt after waving goodbye to the US Open crowd for the final time, Serena couldn't hide her disappointment about how her final match played out.

"That's a really good question, no-one's asked me that yet," Williams said. "I was actually not very happy at all, just because of the result.

"I was there to keep going and to keep winning, and it was more or less like, I can't believe I let that match go more than anything... Obviously it was a great moment and a great memory and I don't feel like I've left anything, but I just felt like what I could have done better that day."

While Williams showed her class after the loss towards Tomljanovic with the Aussie going on to lose to Ons Jabeur in the quarter-final. However, it appears the 41-year-old American thought she could have made a deeper run into the US Open tournament.

Serena Williams reacts to Tom Brady retirement

Williams has teased fans in the past about a potential comeback to tennis. In October, speaking at Tech Crunch, Williams announced she was in fact 'not retired' and the chances of her returning was high.

“I am not retired," she said in San Fransisco. "The chances [of me returning] are very high. You can come to my house and [see] I have a court."

However, her reaction to NFL superstar Tom Brady's retirement news this week all but confirms that the 41-year-old has hung up the racquet for good. Williams - who is a massive Brady fan - responded to his retirement announcing by saying: “I’m getting teary-eyed watching this. Sad to see you go. Welcome to the retirement world again….Again.”

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