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Kenya's Eliud Kipchoge poses for photos during his press conference in Vienna, Austria, on Oct. 10, 2019, prior to his attempt to break the two-hour barrier on the October 12 marathon in Vienna. (Xinhua/Guo Chen)

Kenya's Eliud Kipchoge poses for photos during his press conference in Vienna, Austria, on Oct. 10, 2019, prior to his attempt to break the two-hour barrier on the October 12 marathon in Vienna. (Xinhua/Guo Chen)