Portugal's forward Cristiano Ronaldo (C) shakes hands with Iceland's forward Kolbeinn Sigthorsson (2nd R) as Turkish referee Cuneyt Cakir (R) looks on prior to the Euro 2016 group F football match between Portugal and Iceland at the Geoffroy-Guichard stadium in Saint-Etienne on June 14, 2016. / AFP / ODD ANDERSEN