The England international was pictured with the former Barcelona man just days after Mancheter United team-mate and close friend Jesse Lingard was also snapped with the 37-year-old.
Ronaldinho himself later uploaded the photo of him and Rashford to Instagram, writing that "Marcus Rashford has a lot of football, besides being a humble young man and a good person."
Rashford and Lingard are good friends and are currently on holiday together in Miami as they relax ahead of what promises to be a gruelling pre-season.
According to 'The Daily Mail', Quinton Fortune compared Rashford to Ronaldino last year after seeing his performances in training at United's Carrington training base.
Nice to sit down and chat with the king @10Ronaldinho pic.twitter.com/bTZOKuTVn5
— Marcus Rashford (@MarcusRashford) 28 de junho de 2017
@10Ronaldinho Legend, Icon, Idol #goat pic.twitter.com/33vGFI9XVr
— Jesse Lingard (@JesseLingard) 23 de junho de 2017