Watford have won three, drawn one and lost seven of their 11 Premier League matches this season to collect 10 points, which has left them in 17th position in the table.
Two points clear of 18th-placed Burnley, and it would not be a surprise to see the club in and around the bottom three for much of the campaign.
The Hornets will enter Saturday’s contest off the back of successive 1-0 defeats to Southampton and Arsenal, but new head coach Claudio Ranieri managed to lead the team to a stunning 5-2 success at Everton in his second match at the helm on October 23.
Man United, meanwhile, suffered a 2-0 home defeat to Man City in their last match on November 6; the result increased the pressure on head coach Ole Gunnar Solskjaer, but the Norwegian has kept his job and will lead the team into Saturday’s contest at Vicarage Road.
The Red Devils are actually top of their Champions League group ahead of next week’s key clash away to Villarreal, but they have lost three of their last four in the Premier League and won just one of their last six to drop down the table into sixth position.
Line for Watford
Line up for Man United