France's Lucas Pouille returns the ball to Austria's Dominic Thiem during the ATP Moselle Open final tennis match on September 25, 2016 in Metz, eastern France. / AFP / FREDERICK FLORIN (Photo credit should read FREDERICK FLORIN/AFP/Getty Images)
France's Lucas Pouille returns the ball to Austria's Dominic Thiem during the ATP Moselle Open final tennis match on September 25, 2016 in Metz, eastern France. / AFP / FREDERICK FLORIN (Photo credit should read FREDERICK FLORIN/AFP/Getty Images)