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Benzema was ruled out of the tournament in Qatar due to a thigh injury, but it has been reported that he could feature for the holder when it attempts to retain its crown on Monday (AEDT).
Les Bleus beat Morocco 2-0 on Thursday to set up a showdown with La Albiceleste at Lusail Stadium this weekend.
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France head coach Deschamps refused to say whether Ballon d'Or winner Benzema may play a part in the final after returning to training with Real Madrid.
He said after a lengthy pause: "I don't really want to answer that question. Next question. I do apologise."
Benzema has made only 12 appearances for Madrid this season due to injury.
Goals from Theo Hernandez and Randal Kolo Muani put France in another World Cup final.