The last time the two giants met at Old Trafford was in the 2007/08 Champions League semi-finals - a clash that ended in a vital 1-0 win for the Reds which saw us progress to the final of the competition, when we famously triumphed against Chelsea on penalties on that memorable rain-soaked night in Moscow.

It was 29 April 2008 when we welcomed Barcelona for a winner-takes-all bout. The fans flooded into the stadium with an air of anticipation lingering around the ground. Both teams knew that the game's outcome would decide the tie, after a tense first leg finished goalless at the Nou Camp.

Just before kick-off, as the players entered the pitch to a fervent atmosphere and the famed Champions League anthem reverberated around the Theatre of Dreams, the fans on the eastern side of the stadium produced a mosaic with the single word ‘Believe’ etched in white around a sea of red.