Manchester United are still serious title contenders, according to Arsène Wenger.
The defending champions lost further ground on Arsenal on Saturday, conceding a late equaliser at home to Southampton while the Gunners were beating Norwich City 4-1 at Emirates Stadium.
The gap between the Premier League leaders and David Moyes' team is now eight points but Wenger says that can change quickly.
[The injured players] will come back in November and the beginning of December. Then you have a really massive squad. [But] if there is a good opportunity [to buy], why not?
"It's too early," he said. "Eight points starts to be a little gap but they [Man United] are not out of the title race. And we are only two points in front of all the others.
"If you have a choice nobody wants to be eight points behind. If you have the choice, you want to be in the race at the top. But you cannot rule Man United out today. They have big players, big experience and they are a big club. It’s three games basically [to make up the gap] - that is very quick in our league."
Arsenal were not at their best for much of Saturday's win over Norwich but they produced four moments of magic in the final third to conjure up a brace for Mesut Ozil and stunning strikes for Jack Wilshere and Aaron Ramsey.
Wenger described Wilshere's effort - a volley after a series of first-time flicks between him and Olivier Giroud - as "close to perfection". The Frenchman is clearly happy with his squad but, when asked, he did not rule out adding to it in January.
"We have a squad that, number and quality-wise, is very, very good," said Wenger. "We are not desperate now [to sign anyone].
"I think it’s important, when you know who is out injured now, that they will come back in November and the beginning of December. Then you have a really massive squad. [But] if there is a good opportunity, why not?"Copyright 2015 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source