The Manchester derby looms over Manchester United now after the FA Cup victory against Nottingham Forest. Erik ten Hag faces a tall task going to the Etihad on Sunday. Not only are Pep Guardiola’s side in red-hot form, but Manchester United have a sea of injuries in the first-team squad. The likes of Rasmus Hojund, Lisandro Martinez, Luke Shaw and many more all won’t be available – which will mean it will be a seriously tall order against the Cityzen’s. Roy Keane and Gary Neville are not hopeful for the upcoming Premier League fixture. READ MORE: Who is Gary Neville? Step into the world of the…