It is not often that Riyad Mahrez comes off the bench with quite such a broad smile on his face. But, boy, was he beaming when he joined the stampede of Algerians in tracksuit tops hurtling on to the pitch at the Prince Moulay Hassan stadium on a rousing night in the Africa Cup of Nations last-16.
When you are the captain, the elder statesman and all-round flag-bearing icon of a sporting nation, you take extra care to keep your dignity.