A victory is the only thing that will guarantee a last 16 spot in the Champions League for Manchester United when they travel to Wolfsburg on Tuesday.
Manchester United have stumbled a little in this season's Champions League, even if they have done fairly well to remain unbeaten since that opening matchday defeat to PSV Eindhoven.
However, PSV are the biggest threat to Manchester United's hopes of making it to the knockout stages, with the Dutch side currently a point behind Louis Van Gaal's men. Wolfsburg are the leaders of Group B with nine points, a point above Manchester United, while CSKA Moscow are out of the running for a place in the round of 16.
A draw is all that is needed for Wolfsburg to qualify â€“ they will guarantee themselves top place in the group with victory â€“ while Manchester United must pick up a win themselves if they are to stay in the Champions League going into the New Year.
"It is very important for the club to continue in the Champions League and the players want to show their qualities at the highest level," Van Gaal said." You have to prove as a club, as a team, as players, you have to prove that you can continue.
"We cannot depend on the PSV result."
If PSV lose to CSKA Moscow, then Wolfsburg and Manchester United will go through regardless of the result in Germany. However, if PSV beat CSKA Moscow in Eindhoven, then United will have to pick up a victory to stay in the Champions League.
Wolfsburg, looking to make it to the knockout stages for the first time, are ready to give Manchester United a really difficult time.
"We shouldn't be too concerned about United, we should be focusing on ourselves," Wolfsburg manager Dieter Hecking, whose side lost for the first time in a long time at home in the Bundesliga to Borussia Dortmund at the weekend, said.
"I don't feel any pressure. I am really looking forward to this game and I know my team will do all they can for the historic achievement of reaching the knockout stage.
"We want to stir up the fans' enthusiasm and we will do all we can to reach the next round. We are capable of competing with anyone, even Manchester United.
"We pay attention to lots of things; Manchester United had better pay attention to us, too. We're not considering a draw -- we want to win."
Team news: Wolfsburg: Robin Knoche and Felipe are ruled out for the German club with foot injuries, while midfielder Luiz Gustavo is a doubt with a back problem.
Manchester United: Skipper Wayne Rooney remains on the treatment table with an ankle problem, and Van Gaal also has to deal with the absences of Morgan Schneiderlin, Marcos Rojo, Phil Jones, Antonio Valencia, Ander Herrera and Luke Shaw.
Expected lineups: Wolfsburg: Benaglio; Trasch, Naldo, Dante, RodrÃguez; Arnold, Luiz Gustavo; Vierinha, Draxler, Caligiuri; Dost.
Manchester United: De Gea; Darmian, Smalling, Blind, Young; Carrick, Schweinsteiger; Mata, Fellaini, Lingard; Martial.
Where to Watch Live
Wolfsburg vs Manchester United is set to begin at 8.45 pm local time (1.15 am IST, 7.45 pm GMT, 3.45 pm ET). Ten Action will broadcast the UEFA Champions League match live in India, while the action can also be watched via live streaming online on Ten Sports Live.
Viewers in the UK can watch the match live on BT Sport Europe, with Watch BT Sport and the BT Sport App being the online live stream options. Sky Sport 2 will broadcast the Champions League game live in Germany, while the match can also be live streamed on Sky Go Germany.
The Champions League game will be shown live in Canada, North Africa, Middle East, Australia, Spain, France and Thailand on Bein Sports, while the online live streaming option is on Bein Sports Connect.
Watch Manchester City vs Juventus live on Fox Sports 1 in the US, while the live stream option is on FoxSoccer2Go.