Darren Fletcher confirmed he had been asked to take charge of Manchester United for their FA Cup match against Brighton after beginning his reign as interim boss with a 2-2 draw at Burnley.The former United midfielder was asked to step in following Ruben Amorim’s sacking earlier this week.Fans sang the names of both Ole Gunnar Solskjaer and Michael Carrick – the two leading contenders to take charge for the rest of the season – at Turf Moor.