Devin Gardner and Denard Robinson mean mug at Michigan graduation [Photo]

denard robinson devin gardner graduation

As star football players for Michigan, there is no doubting that Devin Gardner and Denard Robinson are pretty tough hombres.

However, we figured their mean-muggin’ graduation photo posted to Gardner’s Instagram account was missing something.

But what?

[Related: Nick Saban drops an epic photobomb at Alabama graduation]

GIF courtesy Imgur