Man Utd vs. Leverkusen takes place tonight in the Champions League.
The game takes place at Old Trafford and is scheduled to kick off at 19:45 BST.
In the UK, the game airs live on ITV 1/ITV 1 HD, while live coverage of the game is available online with bet365.
Get Man United vs. Bayer Leverkusen coverage here:
Manchester United could hand a start to Wayne Rooney (head), who came through Saturday's win over Crystal Palace in the Premier League by wearing a protective headband.
Danny Welbeck (knee) is doubtful, while manager David Moyes is definitely without Phil Jones (ankle), Rafael (hamstring) and Darren Fletcher (bowel condition).
Bayer travel to Manchester without Gonzalo Castro (thigh), while there are fitness concerns over Lars Bender (hip) and Jens Hegeler (hamstring).
What they've said ahead of kick-off:
David Moyes: "Every game has offered a new challenge and a tough one as well. I've been there before with Everton - we didn't quite make the group stages but this is different. This is a club that's used to getting to the latter stages.
"I think all groups are tough. You used to be able to always pick out the group winners but in the last few years that has become more difficult. It is more unpredictable than it was. We've got a leading team from Germany, one from Spain and we go to Donetsk to play Shakhtar. It's a tough group.
"I think it's become a competition that everybody wants to do well in. Maybe some teams can afford to rest players in their leagues and use them in the Champions League but that's hard in the Premier League. It's a competition the players here at Manchester United are used to and experienced in."
Bayer Leverkusen coach Sami Hyypia: "It was completely different operating in England as a player, a lot simpler. However, I'm happy to be back in England and looking forward to tomorrow's game. We're coming up against fierce opposition in a fantastic ground. Every coach and player loves playing in the Champions League. Hopefully we can play to our potential and get a result.
"United have big expectations this season and I think he [David Moyes] is under more pressure than me. We can go into the game relaxed – we need to enjoy it. We must respect our opponents, but not too much. I will rally the troops in order for them to play with no fear.
"It's not the first time that United have started a season slowly. David Moyes is an experienced manager and he needs time to get things right. I hope we can give them enough problems and halt their rhythm."