Super Eagles forward, Samuel Kalu, on Friday collapsed during training in Egypt after allegedly suffering a heart attack.
According to reports, the incident happened when the 21-year-old player was about taking a corner during training. He was rushed to a local hospital.
He has since been confirmed 'okay' and 'stabilised'.
Nigeria Football Federation media chief, Demola Olajire confirmed the situation, but added that the Bordeaux winger has been advised to drink more water.
“I have been told Samuel Kalu has been stabilised. He was taken to hospital for tests and he is certified okay. He was dehydrated, they said. Told him he needs to be taking enough fluids,” Olaajire said.
Samuel Kalu has made just five appearances for the Eagles since making his debut in 2018 and has scored one goal in the process.