Both Senegal and Guinea had qualified for the knockout rounds of AFCON, even before playing each other in the group stage on Tuesday. But the game, which Senegal won 2-0, was somewhat of a local derby between the neighboring countries. Guineans make up the largest immigrant group living in Senegal – there are an estimated 2-3 million living in the country. In some households allegiances are split, as our correspondents found out.