Sanchez has already come close to an exit after Arsenal accepted a £60m offer from Manchester City on transfer deadline day - though the move fell through with the Gunners failing to secure a replacement.
"Wenger is clearly anticipating that Sanchez will be very low when he returns from the worldwide break". The Germany worldwide has attracted enquiries from Inter Milan and Besiktas, but interest has cooled in recent months.
And when it was suggested that Arsenal might cut their losses on the pair in January, the manager added: "Once you are in our kind of situation, we have envisaged every solution yes".
Of Sanchez's potential availability on Saturday against Watford, Wenger said: "I will have to speak with him, I watched the whole game [ against Brazil]. It is possible [they could go in January]". The 25-year-old has made just three appearances this season after recovery from a broken leg and is concerned about future opportunities, but Wenger feels his World Cup ambitions can be fulfilled at The Emirates Stadium.
However, Ozil's agent Dr Erkut Sogut said earlier in the week that the Germany worldwide wanted to play in the Premier League for another two to three years and that talks with Arsenal "are going in a positive way". In the best form I have seen him for a long time.
'When you don't have the World Cup, you focus on your club'.
"If he keeps playing as he is he will go to the World Cup. He has played games since the start of the season and he will play many more".
Wenger then praised Jack Wishere who is knocking on the first-team door after spending last season on loan at Bournemouth.