Louis van Gaal is without centre-halves Jonny Evans, Phil Jones and Chris Smalling for the visit of the Hammers on Saturday.
Sam Allardyce’s side are flying high after a morale-boosting 3-1 victory over last season’s runners-up Liverpool last weekend.
And former United captain Robson appeared a little concerned about the Red Devils’s chances against an in-form Hammers side.
Beware defensive injury crisis,Big Sams men are a danger.
— Bryan Robson (@bryanrobson) September 27, 2014
On Friday, Van Gaal insisted that he wasn’t worried about United’s leaky defence despite a 5-3 loss to newly-promoted Leicester City last Sunday.
“I think we are fifth or sixth in terms of goals, I don’t know,” he said. “I see the difficulty as, more or less, a lot of journalists. I say only that you are looking the other way. Maybe you can listen very carefully.
“We have had some wins and should have [had more] wins. When you are 3-1 ahead after 60 minutes you have to win. Then we are two points off second in the table.
“But because of the loss we are sitting here and you are talking like that and questioning me like that.”
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