The youthful Arsenal side maintained their perfect record in the Europa League as goals from Eddie Nketiah, Mohamed Elneny, Joe Willock and Folarin Balogun sealed a 4-2 win at Dundalk into the last 32 on Thursday.
AllNews understands that Arsenal rested several senior players since already qualified for the last 32 and as the group leaders.
The Gunners went ahead in the 12th minute when Nketiah chipped the ball over Dundalk goalkeeper Gary Rogers for his fifth goal in all competitions this season.
Elneny doubled the lead with a shot from distance six minutes later for his first Arsenal goal in three years, but the Irish side hit back through Jordan Flores who beat Runar Runarsson following a neat exchange with Michael Duffy.
Eliminated Dundalk had the opportunity to equalize - Darragh Leahy's effort from point-blank range was blocked by Calum Chambers before Willock struck with a low shot after the interval to make it 3-1 to Arsenal.
Substitute Balogun added a fourth with a side-foot finish after being played in by Nicolas Pepe 10 minutes from time before Sean Hoare nodded in a consolation goal for the hosts at Dublin's Aviva Stadium.
Arsenal, who scored 20 goals in the six group games, will discover their last-32 opponents in Monday's draw in Nyon, but Arteta was focusing Sunday's Premier League game against Burnley.
Arsenal is 15th in England's top flight with 13 points from 11 games, three places above Burnley who are in the relegation zone.
"We need to start winning football matches immediately. We know that has to start on Sunday," Spaniard Arteta said.