Offensive lineman are a rare breed. Their size, strength and durability make them perhaps the most vital part of a team’s offense since they are assigned with not only clearing a path for running backs but also protecting the quarterback.

Which might explain why lineman are such a close-knight fraternity, even if they’re no longer on the same team.

Take Cleveland Browns tackle Joe Thomas for instance, who despite being sidelined with injury for the remainder of the season is still playing close attention to the game.

Thomas took to Twitter today to post a video of his former teammate and current Atlanta Falcons center Alex Mack. Mack, who played for the Browns from 2009 to 2015, has been a key part of the Falcons offensive success over the past few years, and the video that Thomas posted shows exactly why.

Take a look.

The win-less Browns travel to Cincinnati on Sunday to take on the Bengals while the Falcons host the Bucs at home.