Zach Zenner doesn't look like your average NFL running back.
It isn't Zenner's white skin skin or blueish gray eyes or the way his cheeks turn rose pink when he smiles, though.
It's the thicker neck, rippling shoulders and other signs of added muscle that has Zenner looking like he is ready for the Detroit Lions season to start right now.
In Zenner's fifth season, he looks like he's physically ready to carry more of the offensive load.
"If you’re bigger and just as fast and strong, it’s harder to bring you down," Zenner said following training camp on Saturday.