Paris Saint-Germain confirmed on Friday that Dani Alves requires surgery on a knee injury and will miss the World Cup.
The veteran full-back had initially been ruled out for three weeks after suffering the ligament injury to his right knee in PSG's 2-0 win over Les Herbiers in the Coupe de France final on Tuesday.
However, the capital club have now confirmed that Alves needs to go under the knife, making a return in time for the World Cup - which starts in a month's time in Russia - impossible.
"The latest tests have confirmed the initial diagnosis," PSG said in a statement, adding that the time needed for "conservative treatment is incompatible with the constraints of an optimal preparation for the World Cup."
"In agreement with the player, the medical staff of Paris Saint-Germain and the Seleção have decided for the option of surgery."