Portugal have been dealt a blow ahead of the World Cup with forward Diogo Jota ruled out of the tournament in Qatar due to a calf injury, Liverpool manager Juergen Klopp said on Tuesday.
Jota, 25, was taken off on a stretcher deep into stoppage time during Liverpool's 1-0 Premier League win against champions Manchester City at the weekend.
"Really not good news, yes he will miss the World Cup. Pretty serious injury in the calf muscle and now the process starts. That's it pretty much," said Klopp, adding that Jota would not require surgery.
"All the rest will now follow in the next few days. Very sad news for the boy, for us as well and for Portugal... I don't want to put a time on it (his return). It will be a long time."
Jota, who has scored 10 times in 29 appearances for Portugal, had only regained full fitness after missing the opening few weeks of the season due to a hamstring problem.
He becomes the second Liverpool player to miss out on the World Cup after Colombian Luis Diaz was sidelined due to a knee injury.
Asked how Jota had taken the news, Klopp said: "He's surprisingly okay so far, a smart boy and he knew it when we carried him off. At that moment he knew it."
Klopp was sent to the stands following a heated altercation with the assistant referee during the win against City but the German expects to be in the dugout at home to West Ham United on Wednesday.
"I think I will be there tomorrow because nothing happened yet. I don't think something will happen tomorrow a few hours before the game," he said.