Jack Wilshere insists table leaders Arsenal have a steelier resolve this season.
The Gunners defeated Swansea City on the same day both Manchester clubs lost on Saturday.
"You saw that Manchester United and Manchester City slipped up and I remember a few years ago when I broke into the team, when they lost, we lost. We failed to capitalise, but this time we did, which is nice," said Wilshere.
"I think we showed a different side to our game and hopefully we can continue that."
