Before the Washington Redskins had the famed “Hogs” Offensive Line of the 80s and 90s, they had a Georgian named Len Hauss, who was their starting Center from 1964 until he retired in 1977.
Ray Donaldson played seventeen seasons in the NFL, the first thirteen with the Baltimore/Indianapolis Colts, where he was their starting Center for twelve of them.
It is hard to consider someone underrated when you were a member of the only undefeated team in NFL history and were in your prime when you earned your two Super Bowl Rings, but this is what we have in Bill Stanfill.
From the University of Minnesota, George Svendsen would play five seasons with the Green Bay Packers over two runs.
Jake Scott played the first six seasons of his NFL career playing for the Miami Dolphins from 1970 to 1975, and as you can imagine, since he was a Dolphin in that era, he was accustomed to winning.