In fact, it's the second toughest sport around, according to ESPN.com.
Eight experts rated 60 sports in each of 10 categories, and only "the sweet science" (boxing) topped ice hockey in overall difficulty.
Curiously, ESPN didn't consider Texas Hold 'Em a sport for the purposes of this study, yet continues to provide more than enough coverage of it on their cable networks. Interesting.
H/t to Kolzig37 on the link