Aalborg do not boast a squad of household names, but Darren Fletcher says United won't underestimate their Danish opponents ahead of Tuesday's Champions League Group E clash.
The Reds flew out to Denmark on Monday morning intent on securing a first European victory of the campaign. Group E remains all square following two goalless draws between United and Villarreal, and Celtic and Aalborg.
Fletcher feels the Danes will be buoyed by their point at Parkhead and warns that the Reds must tread carefully.
"Aalborg may not be a familiar name, but there are no mugs in the Champions League. They'll still be a top side," he told ManUtd.com. "A lot of people have already discounted them, but the fact that the pressure is off might help them. It's a game that we'll have to be on top form for if we're to get the three points."
Following a somewhat slow start, the Reds have begun to find their form of late with a draw at Chelsea, a Carling Cup victory over Middlesbrough and a second league win of the season against Bolton.
Fletcher hopes a win on Tuesday will kick-start the Reds' Champions League campaign. "The longer you go without a win the more worrying it becomes," he admits. "It was a good performance against Villarreal, we just didn't get the result to match it.
"The 0-0 draw between Aalborg and Celtic was good for us, especially considering Celtic's excellent home record. Aalborg will take great confidence from that, but it's important we win in Denmark and get things going."