Arsenal finished with a 100 per cent record in UEFA Europa League Group B as Mikel Arteta's side signed off with a 4-2 win at Dundalk.
Still smarting from Monday's (AEDT) 2-0 loss to Tottenham in the north London derby, the Gunners made it six wins on the bounce in a major European competition for the first time since 2005.
Arteta, who unsurprisingly made sweeping changes from the weekend for what amounted to a dead rubber, saw Eddie Nketiah break the deadlock before Mohamed Elneny's sweet strike put his side firmly in the ascendancy.
It was not entirely one-way traffic, though, and Jordan Flores thrashed a powerful shot beyond Runar Alex Runarsson to give Dundalk a moment to savour.
However, second-half goals from Joe Willock and substitute Folarin Balogun put the game to bed as Arsenal made it a club-record nine consecutive away games unbeaten in Europe, ensuring Sean Hoare's header was merely a consolation.
Nketiah, who had already been involved in two promising situations, opened the scoring 12 minutes in when he blocked an attempted Andrew Boyle clearance before lifting a neat finish over the onrushing Gary Rogers to become Arsenal's top scorer in all competitions this season.
The second goal arrived soon after and it was a stunner from the right boot of Elneny, who picked out the top-right corner from outside the box.
Dundalk, who beat Shamrock Rovers in extra-time to win the FAI Cup on Monday, had rarely managed to escape their own half but made it count when they did.
Flores received a pass from Michael Duffy before driving his attempt across Runarsson and into the back of the net, despite the Iceland international having got fingertips on it.
A crucial block from Calum Chambers denied Darragh Leahy an unlikely leveller on the stroke of half-time, but Arsenal finished the job in the second half.
Willock kept his cool with possession inside the area and drilled a low shot underneath Rogers, with Balogun similarly level-headed after coming off the bench to convert from close range.
Hoare's flicked header restored a sense of pride for Dundalk, who nonetheless finish bottom of the group and without a point.