The Gunners pulled the plug on an agreement to sell Sanchez to Manchester City on deadline day after being unable to secure the signing of Monaco's Thomas Lemar. The Germany worldwide has attracted enquiries from Inter Milan and Besiktas, but interest has cooled in recent months.
According to the Sky Sports website, Wenger told a press conference: "Once you are in our kind of situation, we have envisaged every solution.
Yesterday, I watched the whole game and I must say he got some special treatment", Wenger said. "It is possible [they could go in January]".
The 25-year-old Germany global limped off with a first-half injury as the World Cup holders completed a 100% record in qualifying for Russian Federation 2018 by thrashing Azerbaijan 5-1 on Sunday.More news: Giants suspend Dominique Rodgers-Cromartie after he shows up, then leaves
'When you don't have the World Cup, you focus on your club'.
On Sanchez, Wenger said: "I will have to speak to him". In the best form I have seen him for a long time. I don't see Jack being fully fit and not going to the World Cup.
Bernardo Silva, one of City's marquee signings in the summer, has made just three starts this season because of the level of competition he faces at the Etihad Stadium.
Both players are in the final year of their contracts and many of Europe's top clubs are looking to sign them.
Wenger then praised Jack Wishere who is knocking on the first-team door after spending last season on loan at Bournemouth.
"I believe it's important we keep our young centre-backs, they blossom at 24 so it's important to keep them in that period".