By Tom Gott Manchester United goalkeeper Andre Onana has confessed he has “a lot to say” after missing Cameroon’s Africa Cup of Nations clash with Guinea on Monday. The stopper has faced major criticism for his decision to delay his arrival at the tournament, choosing to stick with United for the 2-2 draw with Tottenham Hotspur and miss his country’s opener against Zambia. Onana jetted off for the tournament soon after the draw and, after some flight trouble, made it to the Guinea game before things got underway, only to discover he had been left out of the squad entirely. Reports have claimed…