andrija zivkovic
Zivkovic has been a key part of Serbia's success in the Under-20 World Cup.Getty

Chelsea are among the clubs interested in signing Partizan Belgrade prodigy Andrija Zivkovic, according to the player's agent.

At the tender age of 18, Zivkovic has already shattered records for both club and country, becoming Partizan's youngest ever captain at 17 and seven months old, just five months after making his professional debut for the club.

The winger also holds the record as Serbia's youngest ever national team player and guided his country to success in the Under-20 World Cup in New Zealand this summer, beating Brazil 1-0 in the final.

His rise in his homeland has inevitably attracted the attention of bigger clubs across Europe, with Spanish newspaper Super Deporte claiming Valencia are among his fans.

The same publication contacted Zivkovic's agent Pedja Djordjevic, who confirmed Jose Mourinho is also an admirer of the talented Serbian.

"We want to review all the options and decide calmly," he told Super Deporte. "Valencia and Chelsea are two of the clubs interested in Zivkovic."

Chelsea could have the added advantage in the race to sign Zivkovic with a Serbian contingent already playing key roles in the first team in the shape of Branislav Ivanovic and Nemanja Matic.

The Premier League champions boast a number of options in attacking midfield, including PFA Player of the Year Eden Hazard and Juan Cuadrado, signed from Fiorentina during the January transfer window.

News that 19-year-old starlet Betrand Traore is now eligible to play for the first team having earned a work permit, as reported by the Guardian, provides Mourinho with another option, although the Chelsea boss has ruled out the possibly of a move for Atletico Madrid star Antoine Griezmann.

"Griezmann is a great forward but he is not one of our objectives to reinforce the squad for the coming season. We're not interested," Mourinho told Marca.