Despite Milan slapping an €8 million price-tag on the former World Player of the Year, Gremio remain confident.
"We are waiting for the situation to evolve, but we are remaining calm," noted Gremio Vice-President Cesar Cidade Dias. "All will be a lot clearer after January 15.
"There are various clubs that want Ronaldinho, but our shirt represents a lot to him. We have our weapons and we'll fight for his signature. I'm optimistic."
The player's agent brother Roberto De Assis has also suggested that Ronaldinho is about to return to South America.
"After 10 years in Europe the time has arrived to go back home," he is quoted as saying. "However, there is no rush in negotiations."