You need to understand the receiver and the offense you're facing that week. Know his tendencies and what routes he runs out of what formations. This will help you understand the concepts of what the receiver is going to give you on a given play, and make you that much better defending him.

We used a racquetball and threw it off the wall as hard as we could, then tracked it down with our eyes and feet. Nike has new balls that bounce all sorts of different directions and really help you learn to track the ball and move your feet to react quickly.

I play a lot of basketball and racquetball, as they're both great for your feet and hand eye coordination. Other drills can help as well, such as simply catching a football in distant positions from different heights and velocities.

You need to understand the receiver and the offense you're facing that week. Know his tendencies and what routes he runs out of what formations. This will help you understand the concepts of what the receiver is going to give you on a given play, and make you that much better defending him.

I’m going with Darrelle Revis.

You need to make sure you're going exactly where your guy goes in press coverage. In zone, you can read the quarterback and his eyes a bit to determine where he's going. You don't get the opportunity in press coverage to read the quarterback, so it's all on you.

A lot of the routes cornerbacks have to defend are quick underneath routes, so it's tougher to get a chance to track the ball on those.