Serena Williams‘ husband, Alexis Ohanian, celebrated their fourth wedding anniversary by sharing a duo of photos to his Instagram account on Tuesday.

The 38-year-old Reddit co-founder’s first shot showed the happy couple during their wedding ceremony, where he was seen addressing their many party guests.

The tech entrepreneur’s second photo showed the pair standing with their daughter, Olympia, who notably twinned with her 40-year-old mother.

Special occasion: Serena Williams’ husband, Alexis Ohanian, celebrated their fourth wedding anniversary by sharing a duo of photos to his Instagram account on Tuesday

Ohanian also wrote a short message where he expressed his happiness about the special occasion.

‘4 years ago you made me the happiest man in the world and our little family keeps me feeling more grateful every day. Nov 16 will always be a very special day for our family ♥️ happy anniversary @serenawilliams,’ he noted

The entrepreneur then remarked that he was happy to have welcomed a child with the tennis great despite her inability to stay awake while watching films together.

‘Thank you for bringing this joy named Olympia into our life even though you always fall asleep in the middle of our movie nights,’ he noted.

Making his thoughts known: Ohanian also wrote a short message where he expressed his happiness about the special occasion

Ohanian and Williams initially met in 2015 when they argued over a table at a hotel they were both staying at in Rome.

The two remained in contact and the tennis champion later invited the tech entrepreneur to spend time with her in Paris later that year.

The happy couple went on to announce their engagement in 2016, and the Reddit co-founder popped the big question at the same hotel where they first met.

The tennis champion accidentally shared the news about her pregnancy on her Snapchat in 2017, and quickly deleted her post.

Starting off strong: Ohanian and Williams initially met in 2015 when they argued over a table at a hotel they were both staying at in Rome; they are seen in 2019

She went on to confirm that she and Ohanian were expecting to welcome a child that same year, and she gave birth to Olympia that September.

The happy couple went on to make their union official during a star-studded wedding ceremony that was held in New Orleans.

Williams previously spoke to E! News and told the media outlet about how she and Ohanian keep their marriage healthy.

Slight mistake: The tennis champion accidentally shared the news about her pregnancy on her Snapchat in 2017, and quickly deleted her post; the family is seen together on Sunday

Making it known: She went on to confirm that she and Ohanian were expecting to welcome a child that same year, and she gave birth to Olympia that September

She noted that being married ‘takes a lot of time and effort…It’s about having great communication and understanding. And above all, it’s all about [being] loving. That’s the most important quality anytime, and it covers everything.’

The professional athlete then remarked that she and her husband remained in close contact whether or not they were together.

‘We FaceTime a lot. We have prayer time at night. That’s really special. We always do that, we try not to miss it a lot,’ she stated.

Opinion: Williams previously stated that marriage ‘takes a lot of time and effort…It’s about having great communication and understanding’; she is seen with Ohanian at the 2021 Met Gala