The tough-to-watch part comes due to a variety of injuries, starting with Steelers linebacker Ryan Shazier and ending with Bengals linebacker Vontaze Burfict.
Both players had to be carted off the field and Shazier was taken to the hospital with what looked like a terrifyingly horrible injury.
Burfict was taken out by a dirty hit from Juju Smith-Schuster who laid out Burfict and then stood over him taunting him in a disgusting display of events.
Current and former teammates as well as other players around the NFL took to Twitter to send their thoughts to Burfict and Shazier during and following the game.
Football is a crazy wild violent sport. Not a contact sport, a collision sport ... prayers up to Shazier and Vontaze— Darien Harris (@DHarris_45) December 5, 2017
Never wanna see players carted off the field. Praying for 2 of the best in the game— Cardale Jones (@Cardale7_) December 5, 2017
Prayers up for tez and joe— Jeremy Hill (@JeremyHill33) December 5, 2017