Tom Brady Shares Sweet Snap Playing Golf with Son Jack — but Admits He’s ‘Not Sure About This Game’

The former NFL star shares his son Jack, 17, with ex Bridget Moynahan

Tom Brady is spending some quality time with his son Jack.

On Thursday, Dec. 26, the retired NFL player, 47, shared a photo of himself and his older son John “Jack” Edward Thomas, 17, whom he shares with ex Bridget Moynahan, playing golf together. The teen can be seen teeing up to hit the ball, while Brady watches him from the side.

“Love this boy,” the proud dad shared over the snap, adding, “Not sure about this game.”

Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

Brady has previously discussed Jack’s impressive sports skills while celebrating his 17th birthday in August.

Brady shared a celebratory carousel of photos on his Instagram, including one sweet father-son photo in which Jack stood almost as tall as his dad. The lookalike duo leaned into each other as they posed on a golf course.

Other photos show Jack with his siblings Vivian, 11, and Benjamin, 14, whom Brady shares with ex Gisele Bündchen, and videos of Jack playing golf with his dad.

“Happy 17th birthday to the kindest, sweetest, most thoughtful 17-year-old, I know. You are truly a blessing in my life and I am so grateful to watch you mature into a young man,” Brady wrote in his caption.

“Your love of family, friends, school, athletics, hard work and dedication to everything you put your energy into are just some of your amazing qualities.”

“I love spending every minute with you and I cherish our time together. (Those are all my favorite things about you. My least favorite is that you can beat me in one on one now 🙄😂),” he joked, ending his post by wishing his son a happy birthday and saying he’ll love him forever.