Paris Olympics: What to know and who to watch during the canoe/kayak competition
Casey Eichfeld of the United States competes during the canoe single C1 men's heats of the Canoe Slalom at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Sunday, Aug. 7, 2016. The 34-year-old Eichfeld is going to his fourth Olympics after competing in Beijing, London and Rio de Janeiro. Credit: AP/Kirsty Wigglesworth