It takes a particular type of person to play on an NFL offensive line for many reasons. They do the dirty, unappreciated work for the most popular position in America — and do the most consistently, physical part of an already violent sport.
The individuals who make up the five spots have to accept their thankless role. It requires a different type of focus and grit in each game. The Kansas City Chiefs have seen it with starting players like right guard Trey Smith battling through injury — and actually missing one game dealing with a lingering ankle issue.