2010 Winter Olympics: Day 4

USA's Shani Davis skates behind Korea's Joon Mon during the first heat of the 500 meters speed skating event at the Richmond Olympic Oval. Davis didn't even hang around for the second race. He ranked 18th (35.45) after the opening round and dropped out to focus on Wednesday's 1,000, in which he's the defending Olympic champion and world-record holder. He mainly uses the 500 to get in speed work for his best events, the 1,000 and 1,500. - AP Nuccio DiNuzzo / Chicago Tribune
