Arsenal arrived in Naples defending a 2-0 lead from the first leg, knowing that an away goal would put them on the verge of the last four.
And, after a relatively close opening period, Lacazette drilled home a wonderful shot to calm Arsenal’s nerves.
The Frenchman was upended by Piotr Zieliński on the edge of the box and immediately indicated that he wanted to take the set-piece himself. He then whipped a powerful shot around the wall and into the top corner of the goal.
You can watch the fine finish below.
A HUGE goal for the Gunners! 👊
Alexandre Lacazette fires in a free-kick from 30 yards!
Just what they were after 🙌 pic.twitter.com/wSMSQFvjhu— Football on BT Sport (@btsportfootball)April 18, 2019
To follow live coverage of the Europa League match – click here.