AZ Alkmaar striker Jozy Altidore is eager to see a deal done with Sunderland.
AZ have already rejected one offer from the Black Cats this week for the USA international.
However, that won't deter Sunderland, which will return with a new bid.
Altidore's agent Lyle Yorks, meanwhile, is flying to Europe to oversee negotiations and help move the deal along.