‘Safety Taylor Rapp was a limited participant Thursday after being sidelined for Wednesday’s walkthrough due to the neck injury suffered against the Jets. But coach Sean McDermott said tests on Rapp’s neck came back negative and he has a chance to play Sunday against the Philadelphia Eagles. Cornerback Dane Jackson, who also took a blow to the head in the game against the Jets, did not participate for a second day. The Bills would start Christian Benford at cornerback if Jackson can’t play.’