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Manchester City's Argentinian striker Sergio Aguero (C) vies with Celtic's Israeli midfielder Nir Bitton (L) and Celtic's Scottish midfielder Scott Brown during the UEFA Champions League Group C football match between Celtic and Manchester City at Celtic Park stadium in Glasgow, Scotland on September 28, 2016. / AFP / OLI SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)

Manchester City's Argentinian striker Sergio Aguero (C) vies with Celtic's Israeli midfielder Nir Bitton (L) and Celtic's Scottish midfielder Scott Brown during the UEFA Champions League Group C football match between Celtic and Manchester City at Celtic Park stadium in Glasgow, Scotland on September 28, 2016. / AFP / OLI SCARFF        (Photo credit should read OLI SCARFF/AFP/Getty Images)