Jack Wilshere has hailed the "brilliant" support of Arsenal's away fans this season.
Despite a disappointing result at the Etihad Stadium, the visiting fans stayed behind to applaud their side off the field.
"I think we were too stretched and the space between the defence and the midfield was too much"
And Wilshere is determined to repay them when the Gunners host Chelsea in the Premier League next Monday.
"They've been great over the start of the season even though we lost the first game at home," Wilshere told Arsenal Player. "The away fans are brilliant. We have to apologise to them, they spent their money to come up [to Manchester] and we didn't perform to the level they expect.
"We'll go again and we'll see them on Monday."
The England midfielder blamed individual errors for five of Man City's six goals on Saturday and says the team will have to learn from their mistakes.
"Most of the goals were individual mistakes," he said. "I know I certainly am beating myself up about it and the other players I know will be disappointed. We'll learn from that individually and collectively.
"I think we were too stretched and the space between the defence and the midfield was too much. They [Man City] are good at winning the ball back and with the power they've got with Yaya Toure and [Samir] Nasri they attack well, and they showed that.
"We have to tighten up a little bit."