Alisson Becker receives treatment on the pitch after his collision with Colombia defender Davinson Sanchez. Photo: AFP
The 32-year-old collided with opposing defender Davinson Sanchez in Brazil's 2-1 win against Colombia in South American 2026 World Cup qualifying action on Thursday.
Under FIFA's concussion protocol, Alisson left the field in the 78th minute and must take a break, meaning he will miss out on Brazil's clash with Argentina.
"Alisson, who suffered a head knock, is fine and has no medical complaints," a CBF statement read.
"However, he needs to follow FIFA's concussion protocol...(and) will return to (his) club to continue the recovery process."
Alisson joins a mounting list of injuries in the Liverpool squad, with defenders Trent Alexander-Arnold, Joe Gomez and Conor Bradley already on the treatment table.
Another concern for manager Arne Slot is midfielder Ryan Gravenberch, who withdrew from the Netherlands squad on Wednesday with a fitness issue.
Liverpool sit 12 points clear at the top of the Premier League and are next in action on April 2 when they host local rivals Everton.
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