Match ends, Napoli 0, AZ 1.
When AZ Alkmaar fans heard their team would be facing Italian giants Napoli in the Europa League with 13 players ruled out because of positive coronavirus tests, they must have feared the worst.
Instead, a side featuring a number of youth teams players pulled off a shock by winning 1-0 in the Group F match.
Dani de Wit curled in the unexpected winner in the second half.
It was a frustrating evening for the hosts, who had dominated throughout.
Elsewhere, Pablo Alcacer scored two goals in just eight minutes after coming off the bench as Villarreal beat Sivasspor 5-3 in a thriller.
Turkish side Sivasspor had come back from two goals down to level 2-2 and although on-loan Tottenham defender Juan Foyth restored the lead for Villarreal, Max Gradel struck to level again for the visitors.
However, Alcacer was introduced in the 70th minute and scored in the 74th and 78th minutes to give the Spanish side victory in Group I.
Mario Gotze made it two goals in two games for PSV Eindhoven but it was not enough to prevent the Dutch side from losing to Granada in their Group E opener.
Gotze had opened the scoring on the stroke of half-time but goals from Jorge Molina and Darwin Machis ensured the Spanish side marked their Europa League group stage debut with a win.
Former Manchester City midfielder David Silva made his 101st European appearance as he helped Real Sociedad beat Croatians Rijeka in Group F.
Silva's clever reverse ball sent Mikel Merino away on the left and his cutback was fired home in stoppage time by Jon Bautista to give the Spanish side victory.
Finally, Bayer Leverkusen were the round's highest scorers as the Germans thrashed French side Nice 6-2 in Group C while Italians Roma came back from a goal down to beat Swiss side Young Boys 2-1 in Group A.
- 22Di Lorenzo
- 26KoulibalyBooked at 90mins
- 23HysajSubstituted forMário Ruiat 59'minutes
- 68LobotkaSubstituted forDemmeat 66'minutes
- 21PolitanoSubstituted forBakayokoat 83'minutes
- 11LozanoSubstituted forInsigneat 59'minutes
- 9OsimhenSubstituted forPetagnaat 66'minutes
- 6Mário Rui
- 15Martins Indi
- 6MidtsjøSubstituted forLeeuwinat 88'minutes
- 11KarlssonSubstituted forGudmundssonat 88'minutes
- 10de WitBooked at 81mins
- Daniel Stefanski
- Shots on Target
Second Half ends, Napoli 0, AZ 1.
Attempt missed. Giovanni Di Lorenzo (Napoli) header from the centre of the box is high and wide to the right. Assisted by Mário Rui with a cross following a set piece situation.
Diego Demme (Napoli) wins a free kick in the attacking half.
Foul by Albert Gudmundsson (AZ).
Attempt missed. Mário Rui (Napoli) left footed shot from outside the box is too high.
Kalidou Koulibaly (Napoli) is shown the yellow card for a bad foul.
Foul by Kalidou Koulibaly (Napoli).
Dani de Wit (AZ) wins a free kick in the attacking half.
Substitution, AZ. Albert Gudmundsson replaces Jesper Karlsson.
Substitution, AZ. Ramon Leeuwin replaces Fredrik Midtsjø.
Kalidou Koulibaly (Napoli) wins a free kick in the defensive half.
Foul by Dani de Wit (AZ).
Attempt blocked. Lorenzo Insigne (Napoli) right footed shot from outside the box is blocked. Assisted by Kalidou Koulibaly.
Lorenzo Insigne (Napoli) wins a free kick on the left wing.
Foul by Jonas Svensson (AZ).
Foul by Tiemoué Bakayoko (Napoli).
Calvin Stengs (AZ) wins a free kick in the defensive half.
Attempt saved. Fabián Ruiz (Napoli) left footed shot from the left side of the box is saved in the centre of the goal. Assisted by Diego Demme.
Substitution, Napoli. Tiemoué Bakayoko replaces Matteo Politano.