The highly-rated 21-year-old has enjoyed an excellent start to the new season, starting all seven games for his club in Ligue 1 and helping them to a shock away Champions League victory at Premier League holders Manchester City.
His performance in his side’s first European game of the campaign did little to dispel rumours of interest from Pep Guardiola’s team, while fellow English rivals Tottenham are also believed to have considered an approach during the previous transfer window.
Ndombele only extended his contract with Lyon in September, tying him up until 2023, and manager Genesio believes that the youth international deserves a call-up from Les Bleus sooner rather than later.
“He has to go one last step in finishing, the only thing he needs to become a great player,” the 52-year-old told a news conference.
“He lacks some concentration in the final third but he has the technical quality to do it. He should score between six and eight goals per season, considering his position.
“Tanguy understands the demands of the highest level and gives himself the means to reach it. He has international quality, but it's not up to me to decide if he will be selected.”
The World Cup winners made just two changes on their return to action last month following their triumph in Russia, with goalkeepers Hugo Lloris and Steve Mandanda both unavailable through injury.
Their tie with Germany, in particular, will be a key fixture as Les Bleus look to build on their previous Nations League victory against Netherlands.