MARCH 2: The 18-year-old striker follows in the footsteps of his World Cup-winning father, who had five successful seasons at the Camp Nou.
Mendes terminated his contract with Brazilian Serie B club Cruzeiro to join Barcelona’s under-19 squad on trial.
He had kept his father’s identity a secret until he secured a trial and deal with Cruzeiro.
Ronaldinho, 42, now works as an ambassador for Barcelona after retiring from football in 2015.
The flamboyant former striker, a 2005 Ballon d’Or winner, helped the Catalan giants win a Champions League and back-to-back La Liga titles during his time at the club.
Mendes will be part of Barcelona’s famed La Masia academy, which has produced icons such as Lionel Messi, Gerard Piqué and current boss Xavi.