Arsenal will miss Partey’s physical presence, which was an asset when they beat PSG in October, and Merino will need to live up to his nickname of the ‘Duel Monster’ to stop Joao Neves and Vitinha running the show. The midfield battle will be key, but not as intriguing as the one out wide.

Gunners chase history in Champions League semi-final as Mikel Arteta faces line-up dilemma - Mikel Arteta has called on Arsenal fans to turn the Emirates into ‘something special’ as he seeks to overco

Mikel Arteta has urged Arsenal supporters to transform the Emirates Stadium into a fortress tonight, insisting their energy is essential if the club are to finally conquer Europe.Photo by Alex