There’ll be a new name taking the field Sunday for the Giants-Redskins game, sources tell The Post.

The Skins have finalized their long-expected 27-year, $205 million stadium naming rights deal and are expected to change the name of their home from Redskins Stadium to FedEx Field just prior to the Giants game, sources added.

It is the richest stadium-naming rights deal in the NFL.

The ‘Skins new owner, Daniel Snyder, took the former owner’s name, Jack Kent Cooke, off the stadium prior to this season in anticipation of the naming rights deal, which should help him pay down the mountain of debt he piled up with the $800 million purchase.

Marc Ganis, a Chicago-based sports industry consultant, said the rumored deal would have a present cash value of about $6 million a year.

The team had no comment on the name change but has scheduled a Sunday morning press conference.