UEFA decided to abolish the away goal rule from all of its European tournaments. An interesting call, given it allowed the team with the most away goals to advance if both sides ended the tie with the same aggregate score in knockout stage matches.

Real Madrid will go into the tie as clear favourites after squeezing past rivals Atletico Madrid in a controversial penalty shootout. Arsenal have the added challenge of being away for the second leg, but there are reasons for Mikel Arteta’s side to believe they can cause an upset.

Carlo Ancelotti has revealed that he initially wanted teenage talent Endrick to take one of the penalty kicks in the Champions League shoot-out between Real