The former World Player of the Year has been excellent this season, creating 15 goals for his teammates.
Speaking to ANSA, Leo said: “Ronaldinho has spent two or three years in obscurity, but today he is the most important player at Milan and Dunga should call him up.
“Ronaldinho has a wonderful story. He was the best. He personified the Brazilian that everyone loves.
“But then he had some difficulties. He was silly. He gave up. He stopped training and lived two or three years in the shadows.
“Now he is training again. He works hard and is concentrated. He is a leader.”