Chelsea manager Jose Mourinho will make a personal check on Nemanja Matic in Friday's World Cup qualifying clash between Serbia and Croatia, as he weighs up a future move for the Benfica midfielder, according to Portuguese newspaper O'Jogo.
The 25-year-old has been frequently linked with a return to his former club, after leaving west London as part of the player-plus-cash deal that saw David Luiz move to Stamford Bridge in 2011.
During his two-year stay at Estadio da Luz, Matic has developed into one of Europe's most exciting holding midfielders, and Mourinho has been eager to bring him back to Chelsea ever since he rejoined the club in the summer.
Matic returns to Serbia's international fold following a year-long exile, and the Chelsea boss will take the opportunity for another look at the Benfica star later this week.
"It is another reason for the players to show what they are worth," said Serbia's U19 manager Ljubinko Drulovic, who confirmed his close friend's planned attendance. "Jose Mourinho is special and he always brings something different."
Matic hasn't pulled on the Serbia shirt since June 2012 after falling out with national team boss Sinisa Mihajlovic, but will be hoping to add to his five international caps having been recalled to the squad.