Just this week, both Barca striker Luis Suarez and vice-president Jordi Mestre have talked up the prospect of Pogba joining the Spanish giants.
However, Mundo Deportivo says any move for Pogba won't happen unless Barca raise funds from player sales.
United are demanding a profit on the €105m they paid Juventus two years ago for the Frenchman - which would be beyond Barca's current available funds.
A solution would be a big money player sale to help balance the books. It's also been suggested Pogba's agent, Mino Raiola, could waive his commission to help see the deal closed.