The Blaugrana wanted to send the France international back to Atletico and sign star midfielder Saul Niguez in exchange but negotiations collapsed.
Thus, the Catalan giants are now reportedly talking with the Red Devils.
Ole Gunnar Solskjaer’s side is looking for a striker despite Edinson Cavani’s new deal and manager Ronald Koeman needs a defender.
And Barcelona are willing to sell Griezmann to United in exchange for Lindelof, who has fallen down the pecking order amid Raphael Varane’s imminent arrival.
If the Premier League club are interested in such a deal then they would still have to splash the cash for the star forward.
The Catalans are keen on offloading high-earning Griezmann in order to lower wages and afford Lionel Messi’s new contract.