The Black Cats have been keen to strengthen their frontline having struggled for goals in the second half of last season, and now look to have sealed a key addition. But who could the new striker be? We take a look at 13 candidates who could fit the bill as Jack Ross closes in on a new face:
5. Marc McNulty
Heavily linked with the Black Cats in January, McNulty could be allowed to leave Reading in this window - and would likely have no shortage of suitors. Photo: Mark Runnacles
6. Caolan Lavery
Has enjoyed some success in various loan spells and is now a free agent. Lavery would be an attractive option in many senses, but is far from a proven option in League One. Photo: Nathan Stirk
7. Bobby Duncan
Currently training with Liverpool's first-team, Duncan has caught the eye with his goal-scoring exploits for the club's academy sides. A loan move could be the next step in his development. Photo: Jan Kruger
8. Eddie Nketiah
Has been linked with Charlton and other second tier sides this summer - but Lee Bowyer admits he is unlikely to join the Addicks. A switch to League One looks even less of a possibility - especially as he has impressed in pre-season for parent club Arsenal. Photo: David Price