The France attacker was offered to Manchester United in the final weeks of the summer market, but terms couldn't be struck.
Dembele was also reluctant to leave, but Marca says Barca's intentions remain to cash in on the winger.
Signed from Borussia Dortmund almost three years ago for a fee rising to €140m, Dembele will not be put up for sale for €60m.
Barca coach Ronald Koeman has stated he has no problem working with Dembele, though doesn't regard him as a first-choice.
“You can't discuss his quality when he's in good physical condition. He hasn't been in good physical shape for some time," said Koeman.
"And if he isn't, he can't give his best performance. Little by little, he is improving and he's a fast player, who scores goals, who can play on both wings and who is very strong in one on one. I am very happy with the way he has been working lately."