Playing in one of the most physically punishing sports on the planet usually makes it a given that injuries will occur.

While that truth holds firm for most, there were actually some Dallas Cowboys' players who defied the odds and remained healthy and available to get the job done week in and week out. ESPN recently released a list of every player in the NFL who achieved perfect attendance in 2016, meaning they missed nary a snap the entire season.

And three Cowboys can approach the stage and receive their certificate.

Center Travis Frederick (First-Team All Pro): 100% of 1,058 snaps

(First-Team All Pro): 100% of 1,058 snaps Guard Zack Martin (First-Team All Pro): 100%

(First-Team All Pro): 100% Right tackle Doug Free: 100%

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Playing in the trenches while remaining healthy is an impressive feat considering what's required physically. And it doesn't help to have a flurry of NFL players weighing upwards of 300 pounds falling on or around you and your legs.

Often with your foot firmly planted in the dirt, which are often the stew for many ankle and knee injuries.

All three Cowboys' lineman defied the odds and their conditioning held firm, however, and they deserve a hardy salute for it. There were certainly others who came very near the mark, and one was again a pleasant surprise by the name of Sean Lee.

Here are the honorable mentions for both defense and offense:

Lee has officially shed the dark cloud of injury after two strong seasons of remaining on the field. It'd culminate in his first All-Pro nod and his second trip to the Pro Bowl.

Carr and Witten remain ironmen while Prescott was only off the field in Week 17 when the Cowboys pulled him for rest just ahead of the playoffs.

Otherwise, he'd join three of his offensive linemen at the head of the attendance class.