According to Opta, Arsenal are the favourites to win the Champions League with a 31.3% chance after sensationally knocking out Real Madrid. Barcelona are second in line with a 27.4% chance of winning their seventh European crown, while PSG have a 22% shot at lifting the famous trophy in Munich.

Merino missed the Gunners’ most recent match - against Crystal Palace last Wednesday - and was a doubt for the first leg of Arsenal’s semi-final against PSG at Emirates Stadium on Tuesday. The Spaniard, however, took part in training on Monday afternoon and is expected to be fit for the game.