Josh Mauro was expected to be a mid-round pick in the 2014 NFL draft. He was passed by all 32 teams, all 7 times. The Pittsburgh Steelers soon after the draft signed Mauro. Early in his career, Mauro has shown that having a chip on his shoulder is not without a cause. After missing a tackle early in the first preseason game vs the New York Gaints. Mauro, the next drive had a massive bullrush and disturbed the passing lane for Giants QB, Nassib.
In the gif image below, you can see that Josh Mauro gets impressive penetration on QB, Nassib. In effect, ending the drive.