Arsenal boss Arsene Wenger admits he needs to strengthen his defence for next season.

Wenger says the amount of goals conceded hurt their title chances last term.

"In the positives as well is the number of goals we scored because that is quite higher than ever," Wenger told Arsenal Season Review DVD.

"And when I say that positive I have to go straight away to a negative because of the number of goals we conceded is too high as well to win a championship.

"So where we progress from there is quite simple - we need to be more steady defensively and concede less goals."