Brazilian legend pledges excitement at his unveiling for a comeback that is winning over initially disbelieving fans It seemed like a joke, a hoax, when at 10pm on 19 June, Ravenna broke the news of Ronaldinho’s signing . The Brazilian, a former Ballon d’Or winner and one of the most recognisable figures in world football, had played his last official match in 2015 for Fluminense; a professional signing in Serie C at 46 years of age seemed unrealistic, to say the least. With football’s attentio…