On a big night of transfer activity, Bordeaux had confirmed it had reached an agreement with Roma to sell Malcom, subject to a medical.
Fresh reports indicate the deal may be off, with Barcelona said to have launched a higher bid, prompting the Ligue 1 club to back out of the Roma deal.
"There has been an approach from Barca," a source told Yahoo. Malom was expected to undergo his medical at the beginning of the week, before linking up with his new team-mates on their pre-season tour of the United States.
It is believed Barcelona approached Bordeaux concerning Malcom in the hours after the Roma news broke, having missed out on signing fellow Brazilian Willian from Chelsea.
That was before the LaLiga giant swooped prompting Bordeaux to block the deal by reportedly cancelling Malcom's flight to Italy this morning.