Robinson and Brown set for Ferriby test
The pair both joined on loan from Lincoln City in midweek, following the departures of Stephane Ngamvoulou and John Sands.
Brown will join Zak Mills in the heart of defence and have the tough task of dealing with giant Villagers striker Tom Denton.
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Hide AdRobinson, meanwhile, will form part of a striking partnership with the returning Dayle Southwell.
United are without defender Carl Piergianni, serving the second part of his two-match ban after collecting his 10th yellow card of the season, while Cameron Johnson (suspended), Dylan McEvoy and Richard Jones are also unavailable.
The Pilgrims have not beaten Ferriby in their past five meetings, going down 4-3 north of the Humber in the reverse contest earlier this season.
Dennis Greene has made four changes to the side which lost 2-0 at Chorley last weekend, with Brown, Southwell, Robinson and Grant Roberts replacing McEvoy, Ngamvoulou, Sands and Mark Jones.
Kick off will be at 3pm.
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Hide AdUNITED: Spiess, Burgess, Mills, Brown, Marrs, Felix, Garner, Roberts, Rollins, Southwell, Robinson; Subs: M. Jones, Hilliard, Lavelle-Moore, Limb, Payne.
FERRIBY: Nicklin, Middleton, Hone, Palmer, Wilde, Hotte, Bolder, Brooksby, King, Bateson, Denton; Subs: Topliss, Fry, Gray, Emerton, Kendall.
Ref: Simon Barrow.