Manchester United have made a big situation out of Andre Onana travelling to the African Cup of Nations, and it has backfired. Even if Manchester United did not know Andre Onana would be included in the African Cup of Nations when he signed for the club last July, it has been on the agenda since early September when he was recalled to the squad. With the AFCON taking place mid-season, losing the first choice stopper was always going to be inconvenient for United. Yet with two quality back-ups in Altay Bayindir and Tom Heaton, and a light fixture list due to a mid-January break, the issue was n…