Ineligible receiver downfield. Interior linemen are ineligible receivers. Team A players who are on the ends of their scrimmage line and are numbered 1-49 or 80-99 are eligible receivers. Interior lineman are restricted from going downfield on a play on which a legal forward pass crosses the neutral zone. The tackle eligible play is illegal.
Ineligible team A linemen are not illegally downfield if they immediately contact a team B lineman and drive him back provided the contact does not continue beyond the two-yard expanded neutral zone.