Corinthians' patience with Adriano appears to thinning after they fined the striker 20% of his wages for missing training on Tuesday.
The former Roma striker, who has been plagued by off-the-field problems in recent years, joined Corinthians last season on a contract that runs until July.
But after this latest act of indiscipline, it is thought that the club will are willing to release him if he fails to abide by the rules in the coming months.
President Roberto de Andrade said that he has spoken to Adriano and was told that he will train harder to earn a place in the starting line-up.
"We had a conversation with him and it was more listening than talking. I wanted to hear what he wanted at Corinthians in the future and he told us that he wants to stay and that his future is here," he said.
"He said that his commitment will be higher and that the same kind of thing will not happen again."
Adriano also apologised to the president but that did not stop the club fining him 20% of his wages and an additional amount from his Remunerated Weekly Rest (DSR), which overall equates to around $56,000.