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Pierre Gilles Lakafia of France is tackled by Gaston Revol of Argentina during their Men's 2016 USA Sevens Rugby Tournament match at the Sam Boyd Stadium in Las Vegas, Nevada on March 4, 2016. / AFP / MARK RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Pierre Gilles Lakafia of France is tackled by Gaston Revol of Argentina during their Men's 2016 USA Sevens Rugby Tournament match at the Sam Boyd Stadium in Las Vegas, Nevada on March 4, 2016. / AFP / MARK RALSTON        (Photo credit should read MARK RALSTON/AFP/Getty Images)