https://www.mercurynews.com/2019/08/01/raiders-camp-day-5-hunter-renfrow-lamarcus-joyner-a-game-within-a-game/

NAPA — Jon Gruden told slot cornerback Lamarcus Joyner during offseason workouts that his pet project was rookie receiver Hunter Renfrow.

And while the 5-foot-8, 185-pound Joyner and the 5-10, 185-pound Renfrow isn’t a training camp matchup to move mountains on the order of 730 pounds worth of Trent Brown (380) vs. Justin Ellis (350), the daily battles could go a long way toward bringing out the best in both men and benefit both sides of the ball.