Bosnia-Herzegovina's assistant manager Rusmir Cviko and winger Haris Duljevic have tested positive for coronavirus in the lead-up to their Euro 2020 qualifying play-off against Northern Ireland on Thursday.
The Bosnian Football Federation said the pair had returned positive tests before the squad gathered in Sarajevo on Monday for Thursday's crunch fixture. Nimes' Duljevic reportedly tested positive in the middle of last week.
A statement said: "The results of regular testing for coronavirus, which was performed before today's gathering of the national team, showed that Bosnian national team member Haris Duljevic positive for Sars-Cov-2.
"A positive test result also arrived for assistant coach Rusmir Cviko. Neither of them shows symptoms of Covid-19 disease, but they will enter self-isolation."
One non-coronavirus related change to the squad was also announced, with Milan Duric called in following an injury to forward Elvir Koljic.
Jonny Evans is expected to be fit for the game, Northern Ireland manager Ian Baraclough has said.
Evans took a knock in Leicester's Premier League defeat to West Ham on Sunday, but Baraclough said he had reported to camp ready to play.
"He has reported last night (Sunday) and this morning to be OK," Baraclough said. "Nothing to worry about."
Evans missed both of Northern Ireland's fixtures in September through a combination of personal reasons and injury, and the 32-year-old did not play his first game of the season until Leicester's 5-2 win over Manchester City a little over a week ago.
He was substituted in that match after his calf tightened up, but there had been no further concerns over his fitness until he took the knock in Sunday's 3-0 home reverse to the Hammers, in which he played all 90 minutes.
Baraclough said there were "one or two bumps and bruises" within his 26-man squad for both the Bosnia trip and subsequent Nations League games against Austria and Norway, but that there were no major issues to worry about.
Northern Ireland captain Steven Davis played only a limited role in Rangers' 2-0 win over Ross County on Sunday, coming on as an 83rd-minute substitute, meaning he is fresh as he stands to break Pat Jennings' caps record on Thursday by making his 120th appearance.
"He does the things right leading up to a game. We're fortunate that he took a rest on Sunday for Rangers," Baraclough said. "It's allowed him to have a really good run-up to the game and I expect him to lead the team out."
Northern Ireland have spent months preparing for Thursday's fixture, which was originally scheduled for March before the coronavirus pandemic took hold.
The winner will face either the Republic of Ireland or Slovakia for a place in the rearranged Euro 2020 finals, offering Northern Ireland the chance of qualifying for a second European Championships in a row.
"There's a definite focus on making sure we are in the final come next month to give ourselves a chance to get to the Euros," Baraclough said. "The players want to be there.
"Players want to experience the feeling of being at a competition that is renowned worldwide now and being on the biggest stage, so there's no bigger incentive."
