The equation would appear to be simple enough - if Manchester United avoid defeat against RB Leipzig on Tuesday night they will be playing Champions League football after Christmas.
But, Manchester United being Manchester United, it isn't as straightforward as all that.
Ole Gunnar Solskjaer faces quite a few dilemmas as he sends his team out in the Red Bull Arena knowing that defeat would mean the unthinkable scenario of dropping into the Europa League.
Ole Gunnar Solskjaer is preparing his Manchester United team for a make-or-break match against RB Leipzig in the Champions League on Tuesday night
Not only are there headaches over selection but also in the way United should approach the contest.