Arsenal remain unbeaten against Real Madrid in European competition (W2 D1), and haven’t conceded a single goal across their three meetings. The Gunners could become the first side ever to keep four consecutive clean sheets against Los Blancos in the European Cup/UEFA Champions League.

Real Madrid’s defeat at the Emirates Stadium was the fifth time they have lost the first leg of a knockout stage tie in the European Cup/UEFA Champions League by 3+ goals, while they’ve been eliminated in the second leg in three of the previous four occasions (the exception being against Derby County in the last 16 in 1975-76, winning 6-5 on aggregate after a 1-4 defeat in the first leg).

Across the 53 games that Real Madrid have played against English sides in the European Cup/UEFA Champions League, they’ve managed to win by more than three goals on just two previous occasions: 5-1 v Derby County in 1975-76 (last 16) and 4-0 v Tottenham Hotspur in 2010-11 (quarter-final).

Since the start of the 2015-16 season, this will be the 16th time that Real Madrid have played the second leg of a UEFA Champions League knockout stage tie at home. Of the previous 15, they’ve only been eliminated on one occasion (v Ajax in the last 16 in 2018-19), and progressed from the last eight in a row.

Arsenal could equal their longest winning run away from home in the European Cup/UEFA Champions League (4 – won their last three). Indeed, the only previous time they won four in a row, the fourth game of that run was a victory against Real Madrid at the Santiago Bernabeu (1-0 in February 2006, last 16 first leg).

Arsenal have scored an average of 2.55 goals and conceded 0.55 per game in the UEFA Champions League this season (28 scored, six conceded overall), with both of these being their second-best averages in a single European Cup/Champions League campaign, after the 2.63 scored in 2010-11 and 0.31 conceded in 2005-06.

Despite averaging more possession (53.4%), Arsenal made 115 high-intensity pressures in the final third in the first leg of this tie. This was more than three times as many as Real Madrid, whose total of 36 was the lowest of any side across this season’s quarter-final first legs.

Real Madrid’s Kylian Mbappé has been directly involved in eight goals in eight knockout stage games against English sides in the UEFA Champions League (seven goals, one assist), including five in four home outings (four goals, one assist).

Currently on 28 goals and 21 assists, Vinícius Júnior could become the fourth different Real Madrid player to reach 50 goal involvements in the UEFA Champions League (after Cristiano Ronaldo, Karim Benzema, and Raúl), which would be at least twice as many as any other team (Lewandowski and Müller for Bayern).

In the first leg of this tie, Myles Lewis-Skelly became just the third English teenager to assist a goal in a UEFA Champions League knockout stage match. All three of those have done so while playing for Arsenal: Theo Walcott in 2008 (v Milan and Liverpool), Alex Oxlade-Chamberlain in 2012 (v Milan) and Myles Lewis-Skelly in 2025 (v Real Madrid).