Duane Manyweather has worked with some of the NFL's best offensive line players in recent years
When you think of the NFL's biggest names, not many are players in the offensive line.
It's an unfashionable position, yet these players hold one of the most important roles in the team and are often unsung heroes in Super Bowl-winning sides.
Duane Manyweather has made a name for himself as a 'super coach' for the position, having nurtured stars who have gone on to make career earnings north of $1.5bn (£1.1bn).
Those players include New England Patriots offensive tackle Will Campbell, picked fourth in the NFL Draft in April and now set to make his Super Bowl debut next week.
