Ousmane Dembele needs to prove that he wants to play for Barcelona, according to Rivaldo, who says the Manchester United-linked winger has yet to justify his €105 million (£95m/$123m) price tag.
Barca paid big-money to bring an emerging talent to Camp Nou from Borussia Dortmund in the summer of 2017, after seeing talismanic winger Neymar complete a world-record move to Paris Saint-Germain.
Dembele was expected to fill the Brazilian's boots in the final third alongside Lionel Messi and Luis Suarez, but was ultimately unable to hit the ground running at the start of his career in Catalonia.