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Reigning World Champion in the 100 meters, 200 meters and 4x100 meters Tyson Gay of the US listens to a question during an interview at the Beijing Sport University February 4, 2008. Six of the likely athletics stars of the Beijing Olympics -- Gay, Jeremy Wariner, Allyson Felix, Veronica Campbell, Jana Rawlinson and Haile Gebreslassie -- hit the Chinese capital to give a clinic to local athletes. [Agencies]