Arsenal boss Arsene Wenger feels his back four is now coming together after their 0-0 draw with Champions League opponents Marseille.
The Arsenal back four has been chopped and changed but their shut-out of Didier Deschamps' side in the Champions League pleased Wenger.
He said: "It is not all perfect but we have rebuilt the back four.
"(Thomas) Vermaelen had a good game and (Per) Mertesacker was solid, (Andre) Santos as well and (Carl) Jenkinson has just come back - he lacks experience in some situations but overall he did all right.
"The positives are that we didn't concede a goal and Marseille had one shot on target and we know in the final third we can do better."