The teenage forward has been on Newcastle’s radar since January and the club have been making progress in negotiations to sign him this summer.
They have agreed to pay a fee that could go up to €46m and are also prepared to add a 15 per cent sell-on clause as part of the agreement.
A broad agreement is in place between the two clubs but the deal is now in jeopardy due to an injury to the Frenchman.
The young striker picked up a hamstring injury when in action for France Under-20s on Thursday night.
Newcastle are set to reconsider whether to push the deal over the line for the forward this summer.
The Magpies want to see a medical report on his injury and make their own assessments on it.
Eddie Howe’s side want to investigate the striker’s hamstring injury themselves before deciding whether to press ahead with their efforts to sign Ekitike this summer.
Newcastle have also been insistent that the financial aspects of the deal have not been agreed upon yet.
