Centre-backs Sol Campbell, William Gallas and Mikael Silvestre have left the Gunners this summer and Wenger will be looking to bring in some fresh blood in his central defence.

"I wouldn't like to give you any names," Wenger told Arsenal's official website.

"There are plenty of names that we consider and we analyse. We look at the financial possibilities and the technical potential. But it is impossible for me to come out with a name.

"We are still on the search because at the moment we only have three centre-backs and we have seen last season you needed five.

"I believe we need at least four because we have some other players who can fill in this position but overall we are still on the search."