Williams shared the news on Reddit by posting a poem, writing: 'At the same table we first met by chance / This time he made it not by chance / But by choice / Down on one knee / He said 4 words / And I said yes.'The relationship was never confirmed, but if true the two certainly had a positive impact on one another, with Serena winning four straight Grand Slams for the first time in her career between 20 and Johnson leading the Buccaneers to a Super Bowl victory.After that relationship ended she dated actor Jackie Long in 2007, who reportedly dumped the tennis star, she later wrote a blog detailing how a man believed to be Long 'disappeared for a week' before calling to break up with her at the same time she was falling in love with him.
Serena was also seen wearing the jewellery while getting in a post-flight training session later that day at an Auckland tennis club after she arrived in the country alongside her man and friend Caroline Wozniacki.
Although, the ring was featured on her right hand for both the Snapchat shoot and the tennis training session - hours later, she was spotted by onlookers wearing the band on her wedding finger, indicating it may just be her engagement ring.
Many famous men have dated Serena Williams, and this list will give you more details about these lucky dudes.
You might also be interested in this list of Serena Williams' celebrity friends.
“It feels good,” she said during a press conference.
“I really haven’t thought about it too much, because I wasn’t even really gonna think about it until after the tournament.
Jet setters: The Tennis star, who revealed her engagement news with Reddit co-founder in a sweet poem, flaunted her enviable toned pins as she and her love boarded a helicopter to jet to Waiheke island We're more used to seeing Serena Williams in her tennis whites on the court than in her off duty wardrobe but we're loving this casual ensemble.
In tiny denim shorts and a white tank the sports superstar looked effortless as she took a break from training in New Zealand.
So why not steal Serena's style and check out the grey winter warmers in our edit below?
We've found chic styles by Isabel Marant, All Saints, Asos and Zara that'll keep you chic and toasty until spring finally arrives.
It's not hard to get jealous of these men that Serena Williams has gone out with, so try your hardest to contain your envy.