JJ Watt calls his wife Kealia and son Koa “my world” on Valentine’s Day – see the sweet photo!

JJ Watt/Instagram, Cooper Neill/Getty

JJ Watt has two special Valentines for you this Valentine's Day.

On Tuesday, the 33-year-old former Arizona Cardinals defensive end shared an adorable photo of Kealia Ohai Watt and her three-month-old son Koa James on Instagram as he celebrated Valentine's Day with the couple.

In the sweet snapshot, 31-year-old Kealia smiles as she props Koa up on a countertop and the two pose for the camera.

“My 🌎 Happy Valentine’s Day @kealiamae! ❤️💙,” wrote the athlete.

Earlier this month, JJ spoke to PEOPLE about fatherhood and shared how his new role has already impacted his life.

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RELATED: JJ Watt says fatherhood has changed him 'in so many ways': 'It's a love I never knew I could have'

“It's changed me in so many ways,” he said of fatherhood. “I've said before, it's a love I never knew I could have, and it just makes you see the world in a different light. Your perspective changes, your priorities change, and your marriage changes. I see my wife in an even more beautiful light now, seeing her being the mother of our wonderful son.”

JJ also told PEOPLE that in his newfound free time he will be “taking care of his own son, so it's going to be very exciting.”

The former NFL star announced his retirement from the league in late December, just months after the birth of his son.

“Koa's first ever NFL game,” he wrote in a tweet that included two pictures with his family at State Farm Stadium. “My last ever NFL home game. My heart is filled with nothing but love and gratitude. It was an absolute honor and pleasure.”

While there were many factors that contributed to JJ's decision to retire from the NFL, “a big part” was his desire to be back with Koa, Kealia later revealed.

“I think obviously a lot of things went into his decision,” Kealia told PEOPLE this month. “I know he wanted to be with Koa. The way it worked out, it was just the perfect timing and it couldn't have been better for us and Koa.”