Nigel Winterburn says he is confident that Arsene Wenger will bring in a new striker when the transfer window reopens in January.
Arsenal were left short of options on Sunday afternoon as they succumbed to a 1-0 defeat at Old Trafford to Manchester United.
Much of the blame for that defeat has been accredited to Arsenal's lack of options up front.
Wenger could only call on Nicklas Bendtner to provide reinforcements last night but the Dane offered little.
Winterburn says he can't see how Wenger can't sign a striker in January after getting "caught out" in the summer.
The Gunners tried to complete a loan deal for Chelsea's Demba Ba on transfer deadline day but failed to do so before the window shut.
But Winterburn is relying on Wenger to amend his mistakes in the new year.
He told talkSPORT: “We know Arsenal tried to get Demba Ba before they signed Mesut Ozil. Arsene Wenger must have realised he needed another forward.
“When you look at it in the cold light of day – they got caught out. Maybe they felt they could bring in a forward and it didn’t work for them.
“When you look at it now, Olivier Giroud has to stay fit until January. I can’t see any way that they won’t sign somebody else, whether that’s on loan or permanently, in January. Arsene Wenger will have to do that.”
Arsenal have been linked with moves for Karim Benzema and Fernando Llorente when the transfer window reopens on January 1st.