Gyan will join the Black Cats in a deal worth more than £13million from French side Rennes.
The 24-year-old underwent a medical on Tuesday morning.
The Ghana World Cup hero has signed a four-year contract with the Black Cats.
Gyan will join the Black Cats in a deal worth more than £13million from French side Rennes.
The 24-year-old underwent a medical on Tuesday morning.
The Ghana World Cup hero has signed a four-year contract with the Black Cats.
