MORE: Bo Nix's wife Izzy shares her sweetest memories from Broncos' season "Happy Birthday, Bo," Izzy wrote. "He's a leader and a man after God's heart. Grateful for him today, but celebrating him ...

In another picture, they walked through the grass as Izzy looked at Bo. Izzy has her way of wishing Bo Nix a happy birthday. Last year, she posted a picture of Nix with a message for him.