The Brazil great and Ballon d'Or winner signed for Ravenna in June, also taking a stake in the club, but because he had not played since his final appearance for Fluminense in 2015, doubts remained over whether fans would ever see him in action.
Ravenna revealed three weeks ago that the former Barcelona and AC Milan player would make his return in Sunday's home clash with local rivals Forli, and on Friday, manager Andrea Mandorlini told reporters that Ronaldinho would start the match.
"He will play from the start, there's no doubt," Mandorlini said. "Then together we will decide how long he plays."
He is one of the greatest players of the modern era. And we have to get a result. We always play with three forwards. He will be one of the three."
Ronaldinho was welcomed by the Ravenna fans in August, without committing to a return to the pitch. He returned to Italy on Friday afternoon and will have just one training session with his teammates on Saturday before making his club debut.
A temporary stand has been erected at the Stadio Bruno Benelli to cater for the crowd, and if this does turn out to be one last hurrah for Ronaldinho, he may well get the chance to score his 300th professional goal.
Simone Rabbi will play alongside the Brazilian up front for Ravenna, and in Friday's press conference he said that if his side are awarded a penalty on Sunday, Ronaldinho will take the spot kick.
