Sunderland have completed the signing of Lorient midfielder Didier Ndong for a fee of £13.5m.
Ndong has signed a five-year deal at the Stadium of Light and becomes manager David Moyes' seventh summer signing.
Now the Black Cats manager will hope to get a deal done for former loanee Yann M'Vila, who arrived in England on Wednesday in the hope of completing his move.
![Sunderland have completed the signing of Lorient midfielder Didier Ndong for u00a313.5million](http://i.dailymail.co.uk/i/pix/2016/08/31/15/37BF00B600000578-0-Sunderland_have_completed_the_signing_of_Lorient_midfielder_Didi-m-3_1472655382232.jpg)
![Ndong is the second most expensive signing in Sunderland's history, after Steven Fletcher](http://i.dailymail.co.uk/i/pix/2016/08/31/15/37BF005200000578-0-image-a-5_1472655401559.jpg)
If the move is successful, the pairing of M'Vila and Ndong could prove Moyes' first-choice pairing at the heart of his midfield.