Liverpool midfielder Naby Keita was rushed to hospital for a heart scan after pulling out of the Napoli game, but will remain under observation.
The Guinea international suddenly sat down just 18 minutes into the Champions League match at the Stadio San Paolo this evening.
The medics went to see him and he was stretchered off, seemingly with a muscular problem.
However, Sky Sport Italia and Radio Marte both confirm he was rushed to the Cardarelli hospital for tests on his heart.
It seems Keita felt faint and there were initially concerns he might be having a heart attack.
The tests gave the all-clear, but he will remain in hospital under observation for tonight after more scans found a heavy bruise to his back.
Napoli won the match 1-0 in the final minute with Lorenzo Insigne’s goal.
Keita is 23 years old and Liverpool paid €60m to sign him from RB Leipzig over the summer.
Liverpool also released a statement later in the evening.
“Liverpool Football Club can confirm Naby Keita was taken to hospital in Naples on Wednesday evening during the first half of the Champions League fixture with SSC Napoli.
“The midfielder started the game at the Stadio San Paolo, but was substituted inside the opening 20 minutes and replaced by Jordan Henderson after alerting the team’s medical staff to back pain.
“Keita was transferred to a local hospital with the club doctor, where - with the midfielder’s agreement - he underwent a number of precautionary health checks to assess his condition.
“No decision has yet been taken on when the 23-year-old will be discharged.
“Liverpool are scheduled to remain in Italy until Thursday morning before flying back to England.”