Sanchez has a year left on his Arsenal contract but has so far refused to extend and has been linked with a move to Manchester City.
The 28-year-old is currently with his Chile national teammates in Russia where they are already in the final of the FIFA Confederations Cup.
Asked in a press conference on where he will be playing next season, Sanchez said; “It's clear but I can't tell you."
Sanchez was at the press conference alongside his Chile national teammate Claudio Bravo who also plays in the EPL for Manchester City.
“Good question! Right now I'm focused on the Confederations Cup. When this is finished I will see if I stay of if I go. I don't know,” the Arsenal star said when he was asked if he and Bravo will be teammates next season.
Sanchez is yet to agree on a new contract with Arsenal despite a huge offer in the region of £300, 000 per week.
Bayern Munich have reportedly dropped their interest in the player due to his high wage demand.
Sanchez scored 30 goals in all competition last season as Arsenal won the FA Cup but failed to qualify for the Champions League for the first time in 20 years.