I got a little (OK, a lot) verklempt after seeing this video - Haile Gebrselassie, (also affectionately known as Geb) one of the greatest runners of our time, had to announce his retirement after a DNF at 16 miles at the New York City Marathon. This guy is the world record holder in the marathon at 2:03:59 - basically this man can run the marathon the same time it takes me to the half - this guy is crazy fast. Amazing.
Enjoy your retirement, Geb. We'll miss ya.