Berlin, Oct 13: Bayern Munich winger Frank Ribery said that his French countryman Antoine Griezmann is not a world class player yet, although the Atletico Madrid forward had a great football season.

Ribery, in an interview with German Sport Bild magazine on Wednesday, explained that Griezmann has to maintain this level for a decade to be a world class player, reports Efe.

The Bayern Munich player criticised the calls for granting the FIFA Ballon d'Or to any player who had a single impressive season.

Ribery added that he had a constant level in the last 10 years, although he had suffered injuries over the last nine months.

IANS