Neymar might have played his final match for Brazil, with the Selecao's joint-record goalscorer suggesting he may not return to the international stage.
Brazil crashed out of the World Cup with a 4-2 penalty shoot-out defeat to 2018 runners-up Croatia in Doha on Friday.
Their shoot-out heartbreak followed a 1-1 draw over 120 minutes at Education City Stadium, with Neymar opening the scoring midway through extra time before Bruno Petkovic hauled Croatia level.
Neymar's wonderful goal, which came at the end of a sublime move, took him level with the great Pele on 77 for Brazil.
The 30-year-old had hinted this World Cup might be his last, though with the next Copa America coming in 2024, it had not been expected he would retire.
However, Neymar is uncertain what the future holds, telling reporters: "Honestly, I do not know.
77 - Neymar has now scored 77 goals for Brazil, moving level with Pelé as the joint-highest scorer in their history. Heir. pic.twitter.com/8GvDBU1j5G— OptaJoao (@OptaJoao) December 9, 2022
"I think talking now is bad because of the heat of the moment. Maybe I'm not thinking straight.
"To say that this is the end would be rushing myself, but I don't guarantee anything either. Let's see what happens going forward.
"I want to take this time to think about it, think about what I want for myself. I will not close the door to playing with Brazil, and I do not say 100 per cent that I'll come back."
Brazil have been eliminated from four of their past five World Cup quarter-finals, while they have lost their last six knockout games against European nations since a 2-0 victory over Germany in the 2002 final.
The Selecao are the first side in World Cup history to go out after taking the lead in extra time of a knockout match.