The tennis star revealed on Thursday that her boyfriend of almost two years Ohanian had popped the question after whisking her away on a surprise trip to Rome.
Williams, 35, 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.'
Ohanian, 33, later posted Williams' poem to his Facebook account, writing: 'She said yes.'
He also commented on her poem on Reddit, writing: 'And you made me the happiest man on the planet.'
Williams was seen Friday arriving at Auckland Airport followed by the media and then hitting the tennis court for a practice session ahead of the ASB Classic tennis tournament next week.