A shekara ta 2001, Ronaldinho ya sanya hannu a kwangilar shekaru biyar tare da kulob din Faransa Paris Saint-Germain a cikin canja wuri na € 5 miliyan. Bayan dawowarsa daga hutun hunturu, an ba Ronaldinho lambar 21 kuma an saka shi a cikin jerin wadanda suka hada da dan Brazil Aloísio, dan wasan tsakiya Jay-Jay Okocha da dan wasan Nicolas Anelka.Ronaldinho ya fara buga gasar ne a kulob din a ranar 4 ga Agusta, 2001, yana fitowa a matsayin mai maye gurbi a wasan 1<unk>1 da Auxerre. Ronaldinho ya shafe mafi yawan watanni na farko na 2001<unk>02 ya canzawa tsakanin benci da kuma rawar da ya taka. Ya zira kwallaye na farko a kulob din a ranar 13 ga Oktoba a wasan 2<unk>2 da Lyon, inda ya sauya hukuncin da aka tsara a minti na 79 bayan ya zo a minti goma. Bayan dawowa daga hutun hunturu, Ronaldinho ya tafi kan lambar 21 kuma ya shiga cikin jerin wadanda suka hada da dan wasan Brazil Aloísio, dan wasan tsakiya Jay-Jay Okocha da kuma dan wasan Nicolas Anelka.
Shekarar 2001