Three Serbia players have tested positive for Covid-19 ahead of Wednesday's Nations League match against Russia, the country's football federation announced. Lazio midfielder Sergej Milinkovic-Savic, Hellas Verona's winger Darko Lazovic and Basel goalkeeper Djordje Nikolic are self-isolating following tests conducted on the entire squad on Tuesday. As per UEFA regulations, all of them "left the training camp" and "will remain in self-isolation", the federation said. Serbia were already facing Russia without their captain, Inter Milan left-back Aleksandar Kolarov, who left the squad and returned to Italy, where he tested positive for coronavirus on Tuesday. Kolarov was an unused substitute in last week's penalty shoot-out defeat to Scotland that denied Serbia a place in next year's European Championships. Crystal Palace star midfielder Luka Milivojevic missed the match altogether, after also testing positive for the virus. Serbia are bottom of Nations League group B3 which also contains Russia, Hungary and Turkey. mbs/nr/td