Leandro Trossard erased the memory of his red card last week as he played a crucial role in Arsenal's 4-2 Premier League win over Leicester City after the Londoners had somehow squandered a two-goal lead on Saturday.
The Belgian had put Arsenal 2-0 ahead on the stroke of halftime and it was his back-post shot that deflected in off Leicester's Wilfred Ndidi that restored Arsenal's lead in the fourth minute of stoppage time.
Kai Havertz then made totally sure of the victory that lifted Arsenal level with leaders Manchester City on 14 points.
When Trossard's cool finish doubled Arsenal's lead it seemed the hosts would go on to win by a big enough margin to replace City as leaders on goal difference after Pep Guardiola's side were held to a 1-1 draw at Newcastle United.
But James Justin's double – his second, a superb volley in the 63rd minute – stunned the hosts as Leicester, almost non-existent in the opening period, got themselves back to 2-2.
Arsenal peppered the visitors' goal in search of the three points and winless Leicester's rearguard eventually cracked as Trossard got on the end of Bukayo Saka's corner and his goalbound shot bounced in off Ndidi.
The goal was initially given to Trossard but changed to an own goal, although Arsenal were questioning that decision.
While it was not the best Arsenal display it was the ideal statement after being denied victory at City by a last-gasp equaliser after playing the entire second half with 10 men following the red card for Trossard who served his one-match ban by missing his side's League Cup victory this week.
Even better news for the Gunners was the sight of Gabriel Martinelli back in form after a lean spell.
His angled finish to put Arsenal in front after 20 minutes was his first goal for the club since March and he then set up Trossard's goal just before halftime.
"I'm really happy with the performance, I think we deserved the win," the Brazilian, who dispatched Jurrien Timber's pull back past Leicester keeper Mads Hermansen, said.
"We played really well, we suffered a bit. We didn't deserve to suffer that much but we won the game and this is the most important thing."
Leicester will take some heart from the way they battled back into the game and looked like taking an unlikely point as Hermansen made several superb saves as Arsenal piled forward in response to frittering away their lead.
"It's another loss and the results always write the narrative but there was so much to be positive about," Leicester boss Steve Cooper, whose side are 16th with three points, said.
"We've got to try and keep going, keep capitalising on what is going okay and just improve."
Bizarrely many Arsenal fans left early with their side straining for the winner but they should have known better that Arteta's side will always keep going all the way to the end.
"It got very emotional," Arteta told reporters. "More than we wanted certainly. After 2-0 the result should have been bigger. This is the Premier League.
"They scored two goals. But I'm really pleased with the way we responded."