MIAMI GARDENS, Fla. (AP) Miami Dolphins running back Jeff Wilson Jr. mostly practices wide receiver drills during his offseasons, partly because running back drills are second nature to him, but also because he understands the importance of being a pass catcher in today's NFL.

"I remember one point in time, it was a running back league," Wilson said. "Even growing up, around when Adrian Peterson was in the league, you would have three or four every year come out, a running back, in the first round. But the game has changed. Quarterbacks have changed. Speed has changed."

Wide receiver value has soared in the past decade with rule changes that favor offense, unprecedented levels of talent and speed, and teams using receivers in different areas of the run game and pass protection.