I dont see why he wouldn't... Mahrez has been fantastic this season but i still question whether he can keep it up with one of the big boys.I know what is Griezmann best position but...
Do you think Griezmann could play as a right winger in a 4231 and be a better option than the likes of Mahrez/Dembele?
Dembele looks good but he's young and you never know with young wingers. (see Memphis Depay as an example)
So i would say Griezmann is the safest option of the 3 given that he's held his quality for 3-4 years now... But in football you never know.