Serena Williams shows off her engagement ring with fiance Alexis Ohanian

Days after announcing that she'd gotten engaged to Alexis Ohanian, the tennis player flaunted a massive diamond sparkler on that finger while posing for a photo with her Reddit co-founder beau.

The snap was posted on Reddit on Thursday night, January 5, showing Williams looking so in love while standing next to her man. Wearing a casual outfit consisting of a white tank top, a black skirt and a pair of Nike shoes, she smiled at the camera and proudly showed off her ring as she rested her left hand on Ohanian's chest.

Williams announced her engagement last week. In a poem she posted on Reddit, she revealed that Ohanian surprised her with a trip to Rome and popped the question at the same place they first met two years ago.

"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," so she wrote at the time. "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 I said yes."