Stoke City boss Mark Hughes feels that Manchester United are 'vulnerable' ahead of Saturday's clash at Old Trafford.
In his playing days, Hughes spent much of his time as a striker in the United ranks, although now takes his Stoke side to face his former club.
Hughes told reporters: "They can't afford any more slip-ups, but invariably when people question Manchester United they come back with the answers."
Sir Alex Ferguson managed Hughes back in the day, with the Welshman scoring a mighty 163 goals for United helping them to win competitions here, there and everywhere.
United have just eleven points so far this season after a thoroughly disappointing start to the season keeping them eight points off of the title.
However, United have struggled since the days of Hughes and his compatriots, with United losing a total of three league games already this season.
Hughes took over from Tony Pulis in the summer, although he himself has endured a slumping start to the season with his side lying in 16th spot.
His side have scored just four goals, fewer than any other team in the league. A poor performance so far this season for Stoke as well as United?
Hughes looks at the positives and compares his side to that of the teams who have won at Old Trafford, and remains hopeful his side can fight out a tough win.
"West Brom have won there so it's more than possible that we can get a positive result," Hughes added. "You can't go to Old Trafford and be apprehensive. You have to be positive and have a go. If we do that, let's see what happens, but the expectation from ourselves and our fans is high."
It looks to be a close game, although many expect David Moyes' side to win.
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