Former Carolina Panthers quarterback Cam Newton is 31 years old and coming off a season that saw him play just two games because of injury.
He remains unsigned, and Albert Breer of Sports Illustrated suggested teams around the league believe he is no longer the same quarterback who won NFL MVP and led his team to a Super Bowl appearance.
"Not saying he can't bounce back," one general manager said. "But the decline is evident."
This article will be updated to provide more information on this story as it becomes available.