The Tennessee Titans are hard at work, and their players are getting downright filthy along the way.

Take a look at this gnarly looking mud pit, which is being utilized to test their physical endurance.

#Repost @jwyattsports ・・・ Video: @titans a muddy mess @101st_ab

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Note the military personnel supervising the Titans’ boot camp style workout.

The comments in the Instagram post are all pretty positive in support of the Titans. It is an unorthodox workout compared to hitting the gym, but sometimes variety pays off.

If anything, it should give the guys all something to talk about in the locker room as they shower off all that mud.