Mike Brown: Bengals wary of Hernandez’s character, Gronk’s back

In the first round of the 2010 NFL draft, the Bengals selected tight end Jermaine Gresham. In the second round of that draft, the Patriots drafted tight end Rob Gronkowski. And in the fourth round of that draft, the Patriots drafted tight end Aaron Hernandez. Obviously, no one could have imagined that Hernandez would become…