Bulgaria midfielder Todor Nedelev underwent surgery for a brain injury following a serious road accident involving his national team in the capital of Georgia, the country's football federation said on Saturday.
The Bulgarian squad, in Tbilisi to face Georgia in a Nations League game on Sunday, were travelling to their hotel in two buses when the accident happened.
The federation said the 29-year-old had suffered a "craniocerebral injury" and would remain under observation by local medical teams and the Bulgarian team doctor.
It said all the other Bulgaria players and staff were fine.