West Ham defender Anton Ferdinand admits Arsenal are title contenders after their defeat on Saturday.
"But they were also prepared to put a foot in today, which is not something they've been known for in the past. You've got to do that in English football and Arsenal have added that to their game this season. They didn't pass us to death because we got about them and made life difficult for them. But players like Flamini have come in and is doing the job Patrick Vieira used to do.
"They're looking very sharp and they are definitely title contenders."