To be a cornerback in the National Football League is one of the hardest things to do in any sport. To be a top-tier cornerback at the highest level for any length of time is even more difficult, because the difference between 100% and 90% at that altitude can mean that your time in the positive spotlight is over in a hurry.
Losing even a fraction of a step can be professionally fatal. And no cornerback, no matter how great they have been at their peaks, can escape it.
