Learning how to play wide receiver in the NFL is hard, and it usually takes a few years to figure it out. Not only do you have to get into the kind of shape needed to handle the physicality, but you also need to learn the intricacies of the position and whatever offense you happen to be in. Sometimes, it doesn't click right away. But, by year three, if it's ever going to happen, that's the year. We're looking into third-year receivers with the potential to blow up today. Get excited about the potential.