Lyon entered the Europa League after the 4-0 loose on aggregate against Real Sociedad at playoff stage.
The 22-year-old was heavily linked with a move to Premier League outfit Arsenal earlier in the summer but, with days to go in the transfer window, Grenier - whose contract expires in 2016 - has ruled out a last-minute departure from French recordmens.
"There is no question to ask. I will stay at least one more season , I'm happy here" - he said for the press.
