Sydney Mclaughlin-Levrone defended her Olympic title in the 400m hurdles.
Mandatory Credit:	Ben Stansall/AFP/Getty Images via CNN Newsource

Sydney Mclaughlin-Levrone defended her Olympic title in the 400m hurdles.
Mandatory Credit: Ben Stansall/AFP/Getty Images via CNN Newsource

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Olympic moment of the day: Sydney McLaughlin-Levrone defends 400m hurdles title, smashes world record and makes history

Team USA superstar and defending 400m hurdles champion Sydney McLaughlin-Levrone put on a spectacular show at the Stade de France to retain her gold medal.