Being tough is a historically celebrated character trait. The ability to take a hit and come back for more is often the foundation legends build upon.
As the prophet, Rocky Balboa, tells us, "It ain't about how hard you hit, it is about how hard you can get hit and keep moving forward, how much can you take and keep moving forward."
This is coming from a character that made an empire out of people's fascination with tough.
The sports landscape is littered with tough guys and it is impossible to measure an individual's toughness without stepping inside their head first, but I am going to try anyway.
Here are the 25 toughest people in sports today.