The two Premier League sides were set for a six-pointer at Vicarage Road this Sunday, with both teams under threat of dropping down to the Championship.
Everton currently sit in 17th place - level on points with Watford, who are in the relegation zone on goal difference.
The winner of the tie would have been out of the bottom three come the end of the weekend, however the clash has now been postponed.
This is the second time the match has been rescheduled after it was originally moved from the Saturday to Sunday afternoon, after Everton’s midweek clash against Newcastle United was selected for TV coverage tomorrow night (Thursday 17th March).
Why has the match been postponed?
The postponement of Watford v Everton was confirmed following the Toffees FA Cup victory over Boreham Wood at the start of the month.
A brace from Salomon Rondon helped Frank Lampard’s side progress to the quarter-finals, which will take place this weekend.
Everton will face Crystal Palace at 12:30pm this Sunday - hours before they were due to take on Watford.
When will the fixture be rescheduled for?
The Premier League are yet to announce when the rescheduled fixture will take place.
The match will be rescheduled as a midweek game in April or May - depending on Everton’s progression in the FA Cup.
Everton already face Wednesday night matches against Burnley and Leicester next month, so will be eager to avoid adding to their congested April fixture list.
If it is moved to May then the match’s importance could grow even more if both teams are still deep into the relegation scrap.
The Toffees face a tough end to the season with Chelsea, Leicester City and Arsenal all to play in the final few weeks, while Watford face the former two, as well as Crystal Palace.
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