John Hannah, New England Patriots 1973-1985
John Hannah was an incredible left guard for New England, from the years 1973 to 1985. With his 12 year career, he was inducted into the Pro and College Football Hall of Fame. He never missed a single starting game of his career. He recovered 10 fumbles from his offense in his years, which is a great stat as well. Hannah was a 9 Time Pro Bowler and a 10 Time First-Team All-Pro. John Hannah had a very special career, and was one of the best offensive linemen of all time.
Gene Upshaw, Oakland Raiders 1967-1981
Gene Upshaw played a 14 year career for the Raiders to go down as one of the best offensive guards in the books. Chosen in the first round, 17th overall, Upshaw played 217 games and started 207 of them. Gene was a 2x Super Bowl Champion with the Raiders, 6x Pro Bowler, and is a Hall Of Fame Guard. He played 3 Super Bowls, although he won two. He is definitely one of the best football players to ever play in the league, especially one of the best to play at his position behind John Hannah.
Forrest Gregg, Green Bay Packers 1956, 1958-1970, Dallas Cowboys 1971
Forrest was a great player, long lasting, and not only that he was a great coach for even longer.Forrest played a 14 year career, and then continued to coach from 1972 all the way to 1995. No matter if he was a head coach, or an offensive line coach, he did it and never stopped. He won the super bowl three times, the first 2 and the fourth. Beforehand, he was a NFL champion 5 times, and went to the pro bowl 9 times. Forrest Gregg is a historical player, and better yet, a historical coach.
Anthony Munoz, Cincinnati Bengals 1980-1992
Anthony Munoz, the best tackle to play in the NFL played a 12 year career with the Cincinnati Bengals. Although, he never won a super bowl with the Bengals, he did have a phenomenal career. He finished with 11 Pro Bowl appearances, 9 time First-team All-Pro, and a NFL Man of the Year. Selected in the first round, third overall. He started 182 games, played 185 and he couldn't have played better. The Bengals went to the super bowl two times with the Bengals, and lost both of them. Anthony Munoz although, was the best offensive tackle to play the game.
Mike Webster, Pittsburgh Steelers 1974-1988, Kansas City Chiefs 1989-1990
Mike Webster, center for the Steelers most of his career, was a very late draft pick in the fifth round, 125th overall. Mike won the super bowl with the Steelers four times, and appeared at the pro bowl nine times. He played Steelers at heart, and is a part of the Steelers All-Time team, and is also a part of the Pro Football Hall of Fame. Mike Webster was the greatest center to play, and most definitely belongs on this list of players as the greatest center, and one of the best NFL players in existance.