Former Manchester United striker Dimitar Berbatov has warned the team that they cannot afford any mistakes against Galatasaray.
A win for United in Turkey could give them a decent chance of making the knockout stages of the Champions League, while they currently have just three points so far.
However a defeat would render their hopes of making the next round impossible, and they would not be favourites to secure a Europa League consolation spot, either.
Berbatov was part of a Manchester United squad that made their way to a Champions League final, though they did lose it to Barcelona in 2009.
He also won the league with the side under Sir Alex Ferguson. Since the Scot’s retirement, the club have won neither trophy and have spent hundreds of millions of pounds with precious little reward.
Speaking to Betfair, he was clear in what he wanted from the team.
He said: “Every game is different, especially when you go to Galatasaray - they have good players and crazy fans. But forget that when you step on the pitch, try to concentrate and know you have good players, hungry players coming into the team full of confidence and try to mix it with experience. Try to attack and score goals and don’t make f—g stupid mistakes.
“United need to get a good result at Galatasaray. With United’s current form, the chances are there for them.
“I remember playing against Besiktas for Spurs at the old Inonu Stadium - we won 2-0 - but Robbie Keane was two or three metres from me, I was screaming loudly to try to make him hear me, and he couldn’t hear.
“The stadium was like an earthquake. They were passionate and supported their team. Galatasaray get even more passionate when a big team like United come to their ground, so that’s why I’m expecting a crazy atmosphere.”
Nevertheless, he predicts they will come away with a narrow victory.
He added: “I need to be confident and believe United can pull something off because Galatasaray, as much as the atmosphere will be crazy, are beatable. United need to stay confident and concentrated and not make mistakes for the whole 90 minutes - that’s it. United will have chances to score. Knowing they need a result, I’ll go 1-0 to United.
“The chances are still there for United to qualify - they can do it. It depends on the other games as well. It’s going to be tough for sure because United have put themselves in that position.
“Now, they need to get out of this position and this goes by taking points from Galatasaray, away, which is not an easy thing to do and Bayern Munich, it’s Bayern Munich. So, it’s very difficult.”