Serena Williams announced her engagement to Reddit co-founder Alexis Ohanian ThursIstagram

Tennis great Serena Williams announced her engagement to Redditco-founder Alexis Ohanian Thursday in an online thread.

Using her husband-to-be's popular social media site, Williams announced the engagement around 2 p.m. in a poem on the r/isaidyes thread.

"I came home/A little late/Someone had a bag packed for me/And a carriage awaited/Destination: Rome/To escort me to my very own "charming"/Back to where our stars first collided/And now it was full circle/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/r/isaidyes," Williams wrote.

The couple have been dating since 2015. No word yet on wedding plans.

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