Samir Nasri admits Arsenal need to shake-off their recent concentration lapses.

Nasri is hoping his side can display the form they had before recent draws against AZ Alkmaar and West Ham.

"It was a small disappointment to drop two points while we led 2-0 at West Ham, he said. "We had the same against Alkmaar and we need to correct that but we were almost invincible for 10 games before that.

"Now it is necessary to win again in the Premier League. And there is nothing better than a derby against Tottenham. It's been a while since both teams met each other while so high in the table."