30 July, 2017
Sanchez, 28, is entering the final year of his Arsenal contract, as are Mesut Ozil, Kieran Gibbs, Alex Oxlade-Chamberlain and Jack Wilshere.
Sanchez has been linked with the likes of Manchester City and Paris Saint-Germain in recent weeks as the uncertainty about his future continues.
Sanchez was set to report back for pre-season on Sunday after his summer break, but has stayed away because of illness.
Sanchez's illness will not change Arsenal's stance.
Wenger was talking after watching his side win 5-2 against Benfica in the Emirates Cup.
Speaking at his post-match news conference, Wenger said of Sanchez's situation: "There's no development, it's always the same". So that's why I prefer my side. We were in touch with him and his doctor and he should come back on Tuesday. "He is flying back as soon as he is in a position to".
The striker's future remains far from certain, despite Arsenal manager Arsene Wenger insisting that he will not be sold either to a Premier League rival or another major European club.
"It's not the same".
"For a manager, it's a bit different because it concerns more what is the future of the club".
However, if we do end up signing Lemar this summer then I think he'll turn out to be an excellent addition to the squad as he's one of the best young attackers in Europe. It is a secret conversation.
"He has flu. I had him on once the player is done or not done".
Asked by Standard Sport whether he would be arranging a meeting with Sanchez before the Chilean returns to training Wenger said: "I can't talk about that - I have meetings with all the players". "We are still active in the transfer market in general".
"But at the moment there is nothing special to say in this case", he added.