When he competes in triathlons, nine-year-old Conner Green puts in extra work so that his seven-year-old brother Cayden Long can race with him. Cayden has cerebral palsy and can't walk on his own. In the swim portion, Connor pulls Cayden in a raft. In the running portion, he pushes him in a stroller. In the bike portion, he pulls him in a cart. The brothers have competed in more than a dozen triathlons since 2011, and were named Sports Illustrated Kids' . Watch their story in the video above.
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鈥擩oe Spring