Possible line-ups
First leg: Man. United 0-1 Barcelona
Barcelona: Ter Stegen; Semedo, Piqué, Lenglet, Alba; Rakitić, Busquets, Arthur; Messi, Suárez, Dembélé
Out: Rafinha (knee)
Doubtful: Vermaelen (hamstring)
Misses next match if booked: Busquets, Semedo

Manchester United: De Gea; Dalot, Lindelöf, Smalling, Young; McTominay, Fred, Pogba; Rashford, Lukaku, Martial
Out: Bailly (concussion), Herrera (thigh), Shaw (suspended), Valencia (calf)
Misses next match if booked: Herrera, Matić, Valencia, Young

Key battle
Sergio Busquets v Paul Pogba: United have to score and they signed Paul Pogba for just these situations – however, Busquets helped keep him quiet in the first leg and has plenty of experience finishing off these ties against the best of oppositions.

Form guide
1999 remembered – Solskjær’s top UEFA Champions League moments
Last game: Huesca 0-0 Barcelona (Saturday)

After their winner at Old Trafford, Barcelona have now benefited from a joint-record 14 own goals in the UEFA Champions League.
Man. United
Last game: Man. United 2-1 West Ham United (Saturday)

Paul Pogba’s two penalties against West Ham took him to seven spot kicks for the Premier League season, one off Ruud van Nistelrooy’s club record from 2002/03.
Ernesto Valverde, Barcelona coach

There’s no fear, just huge excitement. We’re all aware that we have a very tough game ahead of us if we want to reach the semi-finals.

We’re aware of Manchester United’s strengths. We know we can’t let it become a game with chance after chance; we have to close off any space. If they get space to run into, they’re good. Obviously we’ll try to stop them scoring and score ourselves. Our priority is to score, not to go out thinking we have an advantage.

Ole Gunnar Solskjær, Man. United manager
The 1999 final is a fantastic memory. The last time I was on the pitch here was the only time. I don’t look back on that night too often; I’m just looking forward to seeing if we can play better against Barcelona. We are now 1-0 down at half-time, but if it is a game with many goals in it we stand a bigger chance.