Aidy Boothroyd has made one change for this afternoon's meeting with Scunthorpe United at Vicarage Road that could see Watford guarantee their play-off place.

Jay DeMerit returns to the starting line-up at the expense of knee-injury victim Leigh Bromby, while there is a recall for Lionel Ainsworth on the bench.

Already relegated Iron boss Nigel Adkins is forced into two changes from the side that overcame Cardiff City last time out.

Ian Morris and Ben May come in for Jim Goodwin and Martin Paterson, who are ruled out with hamstring and hernia injuries respectively.

Watford: Lee; Doyley, DeMerit, Shittu, Stewart; Smith, Eustace, O'Toole, McAnuff; Priskin, Henderson. Substitutes: Williamson, Ellington, Mariappa, Ainsworth, Poom.

Scunthorpe United: Murphy; Byrne, Irekpen, Butler, Williams; Forte, Cork, Hurst, Morris; Hayes, May. Substitutes: Sparrow, Weston, Picton, Wright, Winn.