The 26-year-old, who became the world's most expensive player last August when PSG paid Barcelona €222 million (S$359 million) to sign him, is to undergo surgery on a fractured metatarsal tomorrow.
It means a recovery period of up to three months, Lasmar said, putting Neymar and his golden right foot out of action until worryingly close to the June 14 start of the World Cup in Russian Federation.
Lasmar says Neymar will have surgery on Saturday in Belo Horizonte and will be out between 2 1/2 and 3 months. That depends a lot on his post-surgery recovery. "We'll keep checking on Modric and Kroos each day, the thing that concerns us the most is how they are feeling", he said. The player who substitutes him will be good.
That means he is unlikely to play again until the end of May, just three weeks before Brazil play Switzerland at the World Cup.
Having seen the X-rays, Emery said: "I can't tell whether there is a fracture or not".
"Neymar is sad, but he understands that now he doesn't have any other options". And that comes from Brazil's team doctor. He will devote himself to being well as soon as possible.
Without the Brazilian, PSG's chances of a comeback appear to be significantly reduced, although the in-form Angel di Maria should fill the void.
"Thank you for all the messages! Find out how to climb it", he said in Portuguese on Instagram.
Madrid leads 3-1 after the first leg.
The social media post racked up nearly three million "likes", among them his girlfriend, Brazilian soap opera actress Bruna Marquezine.
His absence will be PSG's loss, as the injury rules him out of the March 6 UEFA Champions League round-of-16 game against Real Madrid, the quarterfinals and most likely the first leg of the semifinal, should his team advance that far.
On the possibility of rushing Neymar back for the Real second leg, experts say that PSG would be taking a huge risk, possibly even jeopardising Neymar's participation at the World Cup in Russian Federation in June and July.
Neymar has scored 28 goals and provided 16 assists for the Ligue 1 leaders this season.