Monaco striker Radamel Falcao will miss the World Cup after it was confirmed on Thursday that he has torn his anterior cruciate ligament.
The Colombian will be sidelined for at least six months of action with the knee injury, which occurred during Wednesday's Coupe de France encounter against Chasselay, Porto doctor Jose Carlos Noronha said.
The striker had flown to Portugal in the aftermath of the fixture at Stade Gerland, having picked up the injury following a heavy tackle from one of the amateur side’s defenders shortly before half-time.
After being carried off on a stretcher, concerns were expressed over the severity of the injury and the fears of the player, club and country were confirmed by Noronha, who described the injury as "a serious tear" and suggested the attacker could be absent for up to eight months.
Monaco released a statement saying: "Following the injury suffered on Wednesday, medical examinations were conducted on Radamel Falcao. It appears that the player has an injury of the anterior cruciate ligament in his left knee.
"Surgery is necessary in the coming days. Doctors will thereafter make every effort to allow Radamel Falcao to recover as quickly as possible."
Chasselay president Jocelyn Fontanel announced to 20 Minutes that he has received threats from Colombia over the injury, which was caused by defender Soner Ertek.
"There were two sentences of Spanish abuse, threats and insults," he revealed. "It demanded a lifetime suspension for Soner Ertek. We will not take these messages seriously."
Norona, meanwhile, is set to perform surgery on the damaged left knee of the 27-year-old, who signed a five-year deal with the principality side in the summer, having made a €60 million move from Atletico Madrid.