United willing to offer £40m for Dembélé
Ole Gunnar Solskjaer is looking to overhaul his whole squad in the summer, after a tumultuous start to his reign as Manchester United manager.
Lukaku has been a huge dissapointment since his mammoth transfer from Everton, and Solskjaer is looking to sign a reputable goalscorer.
Dembele, 22, has only been at Lyon since last summer but has had a superb first season, scoring 22 goals in all competitions.
According to the Sun, United are willing to offer up to 40 million pounds for the Frenchman, double what Lyon paid Celtic last summer.
It seems likely that both Lukaku and Martial are due to leave the Manchester club in the summer, with questions about their ability and attitiudes coming into question.