Arsenal must believe they can still win the Premier League title this season despite a 12-point gap to leaders Chelsea, says boss Arsene Wenger.

The Gunners slipped to fourth after a 3-1 defeat at leaders Chelsea last Saturday.

"It is never over," said the Frenchman. "Even if you [the media] think it is, I don't - we can't think like that."

Wenger added: "We're in a pack that is very tight and the fight for every position will be massive, maybe more this season than before.

"If it is over for us, it is over for everyone else as we are all in the pack.

"Chelsea have an advantage, they do not play in Europe, they play for nothing, they do not play midweek games and are in a strong position."