The Transformers star took to Instagram to celebrate the University of North Dakota's 5-2 victory against the University of Michigan on Saturday, sharing a heartwarming photo of himself and his little boy, who was decked out in a Fighting Hawks jersey.
"He definitely looks like my wife. I look at those two together and I'm like, 'Wow! that's amazing! I'm not even sure if this is my son!'" Duhamel joked. "As far as his personality, I think he really has both of us [but] It's too early to say. He's definitely got a personality, this kid, and it's beautiful."