Arsenal boss Mikel Arteta says his side will have to "do something special in Paris" if they are to reach the Champions League final following defeat in their semi-final first leg.
Ousmane Dembele's early strike at the Emirates leaves the Gunners needing to overturn a one-goal deficit against Paris St-Germain in the second leg at the Parc des Princes next week.
It was an ultimately frustrating night for Arsenal at Emirates Stadium, who failed to convert any of their five shots on target.
"If you want to win the Champions League final, you have to do something special.