The France midfielder was expected to move to Camp Nou after leaving Paris Saint-Germain, but instead chose to join Juventus.
Barcelona director of football Eric Abidal admits he does not know why midfielder Adrien Rabiot chose to join Juventus over the Spanish champions.
Rabiot, 24, left Paris Saint-Germain after his contract in the French capital expired and it had been widely reported that he had agreed to move to Barcelona.
But instead of the Catalan giants, the France international chose to join Italian champions Juve, where he may line up in midfield alongside fellow free transfer signing Aaron Ramsey.
“He was on our list [of targets] and it was his choice to join Juventus,” Abidal told Le Parisien.
“I do not know the reasons. It may have been a sporting choice or a financial decision, I don’t know.”