The 28-year-old has been in superb form for Fulham this season with nine goals in the Premier League so far.
However, Serbia’s Politika report that Mitrovic is already ruled out of Fulham’s final Premier League game before the World Cup begins and is a major doubt to be fit for the start of the tournament.
The report claims that Mitrovic suffered the injury whilst on international duty with Serbia in September and medical tests have shown that the striker has two broken bones in his foot.
Mitrovic is currently in Belgrade undergoing treatment and Serbia are hopeful that the Fulham forward will be ready for their second game in Group G.
Serbia’s World Cup begins against Brazil on November 24 before they face Cameroon on November 28 and then Switzerland on December 2.
Serbia are also facing the prospect of being without their other star striker, Dusan Vlahovic, for their game against Brazil as the Juventus forward is also injured.
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