Arsenal will head to Napoli next week firmly in the driving seat, having beaten the Partenopei 2-0 at the Emirates on Thursday night.
A curled finish from Aaron Ramsay, and a Kalidou Koulibaly own goal were enough to see off a Napoli side that struggled to get going in this quarter-final first leg match.
Unai Emery's men looked dangerous throughout, carving their way through the visitors defence, and could have won the game by much more as they created a number of scoring opportunities.
The Spaniard will hope that these missed chances don't come back to haunt his side when they travel to Italy for the second leg next week.