"When people talk about Jerry's work ethic and say, 'Oh it's really extreme, they do it a disservice," Young said.
"Jerry expanded the position of wide receiver so much that there may never be another guy who comes around and expands on the position," Young said. "I don't know if you can say that about any other position. Peyton Manning has come around and done things that we didn't do. It happens at every position. But I can't imagine another receiver coming around who expands on what he did."