Today, the rivalry between the Baltimore Ravens and Pittsburgh Steelers is arguably the fiercest in the league. Back in the late 2000s and early 2010s, no other rivalry even came close.
The Pittsburgh Steelers and Baltimore Ravens rivalry is one of the most physical in the NFL, and players from each side often endure injuries or at least bruises from its hyper-physicality.
Even in the modern era, the Pittsburgh Steelers have been known for being a very physical team that will not hesitate to take the heads off of any player that challenges them.