Everything you need to know ahead of Wednesday's UEFA Champions League semifinal at the Parc des Princes as Arsenal look to mount a comeback against PSG.

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.

Champions League Semi-Final Second Leg Preview, Kick-Off Time, TV Info and Latest Team NewsArsenal head into the lion’s den of the Parc des Princes knowing exactly what’s at