A grouper almost bested a fisherman enjoying a day at sea for his birthday.

In a video posted to Facebook by Big Bully Outdoors, based in Boca Grande, Florida, a man from South Dakota is seen fighting to reel in a massive fish.

As he fights to reel the fish in, Dustin falls head-first and slips into the water.

He quickly jumps back into the boat to continue reeling the huge grouper in and then poses for photos with his big catch.