Newcastle striker Aleksandar Mitrovic has apologised to the club's doctor after having to be restrained as he tried to return to the pitch following a head injury.
The 21-year-old Serbia international was knocked unconscious minutes after scoring his side's equaliser in the 1-1 draw with Sunderland at St James' Park on Sunday.
Quoted in a Serbian newspaper, Mitrovic said: "I didn't know what the procedure was. I didn't know the rules.
"I apologised to the doctor after the game because I knew I had to come off after being knocked unconscious for a few seconds. I've been through the examinations, my head is fine."
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!