Fluminense has been in a mental decline since the FIFA Club World Cup.
They played two home matches. They lost to Cruzeiro in the first match and Palmeiras yesterday. They also lost 1-0 away to Flamengo.
They have lost three of their last three matches. Only Jhon Arias has left the team. I must say I'm surprised by Fluminense's decline.
Welcome to Brazilian soccer, hahaha

There were even jokes and memes in Brazil about this, saying that Brazilian teams did very well in the World Cup, competed at a high level, and stood up to the Europeans, but when they got back here, they would go back to normal and lose games against teams from the interior of Brazil

Jhon Arias was a very important player, but he wasn't the only one, and I'm also amazed at how quickly the team's performance has declined, especially since only one player left.
However, in Fluminense's defense, they lost their last three matches:
1 to Cruzeiro, who are leading the championship
2 to Flamengo, who are a strong team that were in the World Cup
3 to Palmeiras, who are also strong and, like Flamengo, were in the World Cup
The next game is away against São Paulo, which should also be a difficult match
Fluminense's defense is comprised of older, heavier players.
The Sao Paulo match will also be a tough one, but Sao Paulo has won its last two matches. Their previous matches were a complete disaster.
They have lost four in a row.
I expect the Fluminense-Sao Paulo match to end with very few goals.
Sao Paulo is in form, so a Sao Paulo victory is highly likely.