Tough Guy

Here's a skier who's probably even tougher than Lukas Bauer or Justyna Kowalcyzk:

Haitao Du #5 of China competes in the men's standing 20km free cross-country skiing race during Day 4 of the Winter Paralympics on March 15, 2010 in Vancouver, Canada. (Jamie McDonald/Getty Images)

(From Boston.com's "Big Picture" feature on the 2010 Winter Paralympic Games.)