Barcelona coach Xavi says they relish the opportunity of playing at Manchester United on Thursday night.
Barca are at Old Trafford for the second-leg of their Europa League playoff with the aggregate score locked at 2-2.
They are without midfielders Pedri and Gavi because of injury and suspension respectively, with France forward Ousmane Dembele still ruled out with a hamstring problem.
But experienced midfielder Sergio Busquets has been included in the squad after missing the first leg because of an ankle injury.
Barcelona manager Xavi said: "It's a really tough game, Manchester United are one of the best teams in Europe and they are showing it.
"It's the best Manchester United over the last few years and a great bit of work that Erik ten Hag has done.
"At the Nou Camp they showed a great passion and we have to match that. It's a tough stadium to go to and we have to show the personality, play the way we can and be very intense during the game.
"The mentality is what we need to play a game like this. Manchester United are still up there with Manchester City and Arsenal [in the Premier League] so it's a perfect stage to show Barcelona can compete with these teams."
Xavi, a four-time Champions League winner as a Barcelona player, praised the impact of United defender Raphael Varane and midfielder Casemiro.
"They are really important for the team, not only as players but their mentality and they are used to playing these games" he added.
"It was very important for United they could get in Casemiro [from Real Madrid last summer].
"These kind of players are making the difference in their team."