Lyon are demanding a swap from Atletico Madrid in talks over Alexandre Lacazette.
France Football says Atletico has made an initial offer of €60 million for Lacazette.
Yet, Lyon president Jen-Michel Aulas, the owner of the French club, wants to include the Hernández brothers, Lucas and Theo, as part of the deal.
Lyon consider them to be two of the most exciting defensive prospects in Europe.
The inclusion of the two youngsters as part of a prospective deal appears unlikely. Lucas and Theo are highly valued by Diego Simeone.