Liverpool forward Luis Diaz is expected to be out of action until late December after picking up a knee injury in the first half of Sunday's 3-2 Premier League defeat at leaders Arsenal, British media reported on Monday.
The 25-year-old Colombia international does not need surgery but will likely miss 10 matches in Liverpool's packed schedule ahead of the World Cup, which starts on November 20.
The Reds will hope to have Diaz back for their visit to Aston Villa on December 26 in their first match after the World Cup, which Colombia have not qualified for.
Liverpool's England defender Trent Alexander-Arnold also sustained ankle damage in Sunday's match and manager Juergen Klopp said after the match that both injuries did not look good.
"Lucho (Diaz) we had to change before (halftime). (It's) something with the knee, not good," he said.
Diaz has made 12 appearances in all competitions so far this season, scoring four goals with three assists.
Liverpool have struggled this season and are 10th in the table with 10 points after eight matches. They travel to Rangers in Group A of the Champions League on Wednesday.
Captain Marquinhos has snatched the winner as champions Paris St Germain won 2-1 at troubled Olympique de Marseille in Ligue 1 on Sunday, condemning the hosts to a fifth successive loss and a spot in the relegation zone.
Manchester City head into the first international break three points clear at the top of the Premier League after Antoine Semenyo's double sealed an enthralling 5-3 home win over Sunderland, for whom Brian Brobbey grabbed a hat-trick, on Sunday.
JJ Spaun had a message for US Presidents Cup captain Brandt Snedeker, and he delivered it with his clubs instead of his phone, closing with a hot finish to win the BMW PGA Championship on Sunday in Surrey, England.
Atletico Madrid beat arch-rivals Real Madrid 2-1 in LaLiga on Sunday as second-half goals from Alejandro Grimaldo and Jonathan David settled a tense derby at a packed Estadio Metropolitano.
UAE athletes competed in shooting, cycling, triathlon, swimming and football at the Asian Games in Japan on Sunday, as the country's campaign continued across Aichi-Nagoya.
The UAE, working with Paraguay, has sent humanitarian supplies to communities affected by the earthquake in Colombia as part of a $10 million aid package.
The UAE has called for a more inclusive international approach to combating extremism and hate speech, with greater involvement from community leaders, young people, civil society and technology companies.