The Arsenal boss is expected to splash out around ??20m in January on a centre-half and a central midfielder as Jack Wilshere, Mikel Arteta and Aaron Ramsey are all currently sidelined.
The Gunners conceded another two goals against Liverpool on Sunday as once again they had to cope without one of their two senior centre-halves.
Selling Thomas Vermaelen to Barcelona in the summer remarkably left Wenger with only Per Mertesacker and Laurent Koscielny as experienced central defenders, with Calum Chambers, Nacho Monreal and recently Mathieu Debuchy forced to fill gaps.
“If we find one we will do it, said Wenger when asked about buying another centre-half. “Without any doubt. If we find the right player we will do it.
“I think we are getting better (defensively) but that???s what???s at stake,” he said.
“We have to show that in the final part of the season because we go now in the Premier League where we need to win the games. After we have the FA Cup and the Champions League and without defensive solidity we have no future.
“There is a huge difference between the perception that people have of me and I???m not scared to spend money. And if you go out with me one night you will understand that!
“I don???t like to spend your money but I like to spend my money. What I mean is that there were period where we [Arsenal] didn???t have the money. What I don???t like is to spend the money I don???t have. In the future I would have no problem at all.
“What I fight against is spending money where you put the future of the club in danger.”