Neymar has arrived at hospital in Brazil for surgery on the injured right foot, which is expected to keep him out for up to for three months.
The Paris Saint-Germain forward checked into the Mater Dei hospital in Belo Horizonte for the procedure on Saturday, which will be led by Brazil national team surgeon Rodrigo Lasmar.
Neymar fractured the fifth metatarsal during PSG’s 3-0 defeat of Marseille in Ligue 1 on February 25.
He was stretchered off in tears after he was hurt in a challenge from Bouna Sarr.
The injury immediately ruled the 26-year-old out of Tuesday’s Champions League last-16 second leg against Real Madrid and he now faces a battle to regains sharpness ahead of the World Cup.
PSG coach Unai Emery says the club are working hand in hand with Brazil to ensure Neymar has every opportunity to recover as quickly as possible from the operation and prepare properly for the tournament in Russia.
However, he is already sure to miss two warm-up friendlies against Russia and Germany in March.
Jose Luiz Runco, a former chief medical officer for the Brazil team, told AFP the surgery itself is “not difficult”.
“It should take about an hour, or 90 minutes maximum,” he said.
Neymar has scored 28 goals in 30 appearances for PSG in all competitions since signing from Barcelona for a world-record fee last year.