Arsenal defender Per Mertesacker says they can challenge for the Premier League title next season.

But the German admits the key will be maintaining a winning consistency.

Asked how Arsenal can bridge the gap to Chelsea, who won the title with three games to spare, Germany defender Mertesacker said: "Consistency. It's all about that.

"In 2015 we haven't lost a lot of games. Those winning runs create a lot of confidence, between the fans, between the team.

"That is really important to get that going for more than six months."