Trails of chalk follow the hands of the United States’ Sam Mikulak during artistic gymnastics horizontal bar competition in the Pan Am Games in Toronto, Wednesday, July 15, 2015. (AP Photo/Gregory Bull)
Trails of chalk follow the hands of the United States’ Sam Mikulak during artistic gymnastics horizontal bar competition in the Pan Am Games in Toronto, Wednesday, July 15, 2015. (AP Photo/Gregory Bull)
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