Dembele has struggled for form so far this season and France Football says Lyon president Jean-Michel Aulas no longer sees him as untouchable.
And watching developments closely is West Ham United.
Aulas would prefer a loan arrangement in an effort for Dembele to rediscover his best form and recover his value. However, he isn't ruling out selling the striker.
A move to West Ham would represent a return to London for Dembele, having come through the youth system at Fulham.
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