Boss Mikel Arteta believes Arsenal can take their “biggest step forward” under him if they end a turbulent season by booking their place in the Europa League final. 

The Gunners welcome former manager Unai Emery back to the Emirates Stadium on Thursday for the second leg of their semi-final with Villarreal. The Spaniards lead 2-1 from the first leg, where Nicolas Pepe’s penalty gave Arsenal a crucial away goal.