Sunderland have agreed a fee with Le Havre for teenage defender Benjamin Mendy, the French club have confirmed.
Mendy, 18, was prominent for Le Havre last season, making 28 Ligue 2 appearances at left-back.
He has been capped by France at Under-17 and Under-19 level and is highly rated, with Lyon and Arsenal thought to have been monitoring the player.
However, they now appear to have been beaten to his signature by Paolo Di Canio's side.
"We have reached agreement with Sunderland for the transfer of Mendy.It's now up to him to reach an agreement with them. We are okay," Le Havre president Jean-Pierre Louvel told Radio Monte Carlo.
"We were close to an agreement with Lyon, it has not happened but you never know.
"Right now, the only club we are in agreement with is Sunderland and it is now up to Benjamin Mendy to make his choice."
Sunderland have been active in the transfer market already during the close-season, signing defensive duo Modibo Diakite and Valentin Roberge, and midfielders El Hadji Ba and Cabral.