Arsenal manager Arsene Wenger is not convinced about the future of Chile forward Alexis Sanchez as to whether he will remain at the club for next season and feared he may walk away as a free agent in the coming summer.The former Barcelona forward has refused to commit his future to the Emirate giants has he want a move to reunite with his ex-coach Pep Guardiola at Manchester City.The forward was left out in the Community Shield final against Chelsea due to fitness issue as he only returned from his holiday just couples of days before the match.RELATED: Wenger's opinion on Chelsea in the coming seasonSanchez future has been subjected to several links away from the club as he has been offered to various clubs by his agent this summer. It has been announced that he will miss the start of the new season due to an abdominal strain by Wenger. ''In the short term he will remain an Arsenal player. Now, will we manage to extend his contract?'' Wenger told SFR Sport. ''Whether we manage to get him to sign an extension or not - we have so far not been able to. ''On that level I am not super optimistic. We have the firm intention not to sell him.'' Alexis Sanchez has been linked with Chelsea, Manchester City, PSG and Real Madrid in the summer transfer window.Arsenal will play against Leicester for their Premier League opener on Friday.