Arsenal and PSG have both been boosted by the return of key players from injury ahead of the second leg of their Champions League semi-final. Ousmane Dembele was a doubt heading into Wednesday

Felix Zwayer has been appointed as the referee for Arsenal 's Champions League semi-final second-leg decider against Paris Saint-Germain on Wednesday night. UEFA have announced that the German official, 43, will take charge of the return leg in Paris, with Arsenal a goal down on aggregate following last week’s narrow defeat at the Emirates Stadium.

Paris St Germain received a boost ahead of Wednesday’s Champions League semi-final second leg against Arsenal with Ousmane Dembele passed fit as the French champions look to turn growing squad cohesion into a place in the final.