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Switzerland's Roger Federer reacts after winning his second round tennis match against Italy's Andreas Seppi during their at the ATP World Tour Masters 1000 indoor tennis tournament in Paris on November 4, 2015. / AFP / MIGUEL MEDINA (Photo credit should read MIGUEL MEDINA/AFP/Getty Images)

Switzerland's Roger Federer reacts after winning his second round tennis match against Italy's Andreas Seppi during their at the ATP World Tour Masters 1000 indoor tennis tournament in Paris on November 4, 2015.  / AFP / MIGUEL MEDINA        (Photo credit should read MIGUEL MEDINA/AFP/Getty Images)