Lashawn Merritt of the United States wins gold at Rio Olympics

Lashawn Merritt of the United States wins gold at Rio Olympics

Lashawn Merritt of the United States reacts after winning the gold medal in the Men's 4 x 400 meter Relay at Olympic Stadium at the 2016 Rio Summer Olympics in Rio de Janeiro, Brazil, on August 20, 2016. Photo by Kevin Dietsch/UPI

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