Taken from Guardian
One option would be to scramble to postpone this weekend's televised Premier League matches at short notice to clear the way for the replay but that is viewed as impractical.
Alternatively, matches on Easter weekend – United visit Sunderland while Chelsea head to Southampton, both for TV fixtures – could be deferred, or those on the following weekend, which would include the Manchester derby.
Such a move may be resisted by broadcasters, who will have a major say in the deliberations, and also risks storing up the problem for later in the season by displacing more fixtures from the schedule.
The most likely scenario is that Chelsea could be forced to play the replay on a Monday or Tuesday before playing a European game on the Thursday. But that may be opposed by Rafael Benítez, their interim manager, and would also require the approval of the Metropolitan police because Fulham have a home match against Queens Park Rangers on Easter Monday, 1 April.