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Ahead of Wimbledon, Serena Williams calls for equal drug testing


Tennis superstar Serena Williams will begin playing at Wimbledon on Monday, her first match since withdrawing before the fourth round of the French Open last month due to an injury. Recently, the tennis champion talked about her return as well as her frustration with frequent drug testing, saying athletes should be tested equally. NBC’s Keir Simmons reports from the tennis competition.