Ronaldinho was stunned as Brazil trailed Japan by a historic margin.
The Brazilian legend watched in shock as Japan took the lead.
What happened?
Japan's Kaishu Sano scored the historic goal after a dreadful misplaced pass by Danilo.
Sano's impressive solo run left Brazil's defense struggling to keep up.
Why it matters for Ronaldinho
This loss is a significant upset for Brazil, with Ronaldinho clearly shocked by the turn of events.
The goal was historic, marking the first time Brazil conceded a goal in a knockout match against a team not from Europe or South America.
What comes next?
Brazil will need to regroup and refocus if they hope to advance in the tournament.
Ronaldinho's reaction suggests that the team's confidence may have taken a hit.
The match saw Japan's Kaishu Sano receive a second yellow card shortly before scoring the goal.
This decision could have gone either way, but the referee ultimately decided to send Sano off.
Brazil's Danilo was left to rue his misplaced pass, which led to Japan's goal.
The Brazilian team will need to work on their defense if they hope to succeed in the tournament.
The historic nature of Japan's goal cannot be overstated.
For the first time in World Cup history, Brazil conceded a goal in a knockout match against a team not from Europe or South America.
Ronaldinho's stunned reaction says it all - this was a shocking turn of events for Brazil.
The team will need to bounce back quickly if they hope to advance in the tournament.
The goal was scored on a date that will be remembered for a long time, as Japan pulled off a major upset.
Ronaldinho and the rest of the Brazilian team will need to regroup and refocus if they hope to succeed.