Martin Buser, left, shows his swollen ankle to Aaron Burmeister in the school cafeteria during the 2014 Iditarod Trail Sled Dog Race on Tuesday, March 4, 2014, in Nikolai, Alaska. The swelling of Buser’s ankle has gone down after a short rest at the Nikolai checkpoint. Burmeister injured his knee about 18 miles past the Rohn checkpoint on the snowless Farewell Burn. His knee popped out and he had to tape it up so it would stay in place. (AP Photo/The Anchorage Daily News, Bob Hallinen)
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