<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2007) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2007) (Learn how and when to remove this template message) </Td> </Tr> <P> In gridiron football, a lineman is a player who specializes in play at the line of scrimmage . The linemen of the team currently in possession of the ball are the offensive line, while linemen on the opposing team are the defensive line . A number of NFL rules specifically address restrictions and requirements for the offensive line . The defensive line is covered by the same rules that apply to all defensive players and the offensive lineman are supposed to help block the quarterback from getting sacks for a loss or even worse a fumble . Linemen are usually the largest players on the field in both height and weight, since their positions usually require less running and more strength than skill positions . </P> <P> An offensive lineman's motion during a play is often limited to just a few quick steps to establish position, followed by a wrestling match similar to sumo . Offensive linemen thus tend to be the largest players on the field, with excellent agility and balance but limited straight - line running speed . Most pro and college football offensive lineman tend to weigh over 300 pounds . </P>

What position in football has the biggest players