Bengals-Steelers will have plenty of bad blood on Sunday after last year's grueling matchups

This is a must-watch.

If the Cincinnati Bengals' first tilt with the Pittsburgh Steelers is anything like any of their three contests last year, emergency medical staff should be present.

Both teams were left battered and bruised.

In the first contest, it was Le'Veon Bell who suffered the devastating knee injury:

In Round 2, Ben Roethlisberger earned his lumps, receiving a sprained AC joint. He proceeded to miss a few weeks before returning for the playoffs.

With tensions higher in the playoffs, the hits and penalties were that much worse:

First it was coach Mike Munchak grabbing Reggie Nelson's hair:

And then things really went downhill, with bone-crushing hits on Gio Bernard and Antonio Brown:

The game was an utter disaster in which two personal fouls set the Steelers up in field goal position, before knocking it through the uprights and sending Cincinnati home for the offseason.

Get ready for some fireworks when this one kicks off Sunday at 1 p.m. ET.