Manchester United manager Louis Van Gaal admits the pressure is on ahead of their clash with West Ham in the Emirates FA Cup quarter final today. It follows a defeat at the hands of Liverpool in the Europa League on Thursday. Midfielder Juan Mata will miss the game through suspension and West Ham welcome back Victor Moses from injury. Kick off at Old Trafford is 8 pm UAE time. Elsewhere, there’s a London derby as Arsenal host Watford at 5.30 pm. They'll be aiming to join Everton and Crystal Palace in the last four.