The quarterback runs too much, which takes away carries from the backs and puts him at risk — the key factors in Barkley's failed pursuit.

Saquon Barkley appears set to sit out the Philadelphia Eagles final regular-season game Sunday, denying the running back his chance at breaking Eric Dickerson’s NFL single-season rushing record.

Barkley became only the ninth player in NFL history to rush for 2,000 yards last week against the Cowboys. He’s at 2,005 — exactly 100 yards shy of Eric Dickerson, who set the mark of 2,105 in 1984 with the Los Angeles Rams.