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Zhong Tianshi of China waits to compete in the women’s keirin second round cycling event at the Rio Olympic Velodrome during the 2016 Summer Olympics in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. (AP Photo/Patrick Semansky)

2016 Rio Olympics – Cycling Track – Final – Women’s Omnium 10km Scratch Race – Rio Olympic Velodrome – Rio de Janeiro, Brazil – 15/08/2016. Anna Knauer (GER) of Germany and Allison Beveridge (CAN) of Canada crash. REUTERS/Paul Hanna

TOPSHOT – Canada’s Monique Sullivan competes in the Women’s sprint qualifying track cycling event at the Velodrome during the Rio 2016 Olympic Games in Rio de Janeiro on August 14, 2016. / AFP / Eric FEFERBERG (Photo credit should read ERIC FEFERBERG/AFP/Getty Images)

2016 Rio Olympics – Cycling Track – Preliminary – Women’s Keirin First Round – Rio Olympic Velodrome – Rio de Janeiro, Brazil – 13/08/2016. Laurine van Riessen (NED) of Netherlands and Virginie Cueff (FRA) of France compete. REUTERS/Paul Hanna

2016 Rio Olympics – Cycling Track – Final – Men’s Omnium 40km Points Race – Rio Olympic Velodrome – Rio de Janeiro, Brazil – 15/08/2016. Glenn O’Shea (AUS) of Australia, Elia Viviani (ITA) of Italy and Park Sang-hoon (KOR) of South Korea crash. REUTERS/Eric Gaillard