How do you define tough? The ability to take and deliver a shot or ten? To play hurt and still play well? The utter refusal to give in to pressure, circumstance, or more physically imposing foe? To dominate one's opponents or even one's sport? How about the ability to overcome serious personal setbacks, such as a dire injury or illness, and return to the highest level of performance? How about sheer longevity in a punishing, demanding game?
You've seen our list of the Top 25 toughest athletes in sports. Who are yours?