Kurt Zouma undergoing West Ham medical ahead of transfer to London Stadium

Kurt Zouma is having a medical at West Ham ahead of completing his move across London from Chelsea.

Sky Sports News previously reported that West Ham were keen to land the defender, but that the obstacle of personal terms and the structure of payments had to be overcome before any move could be completed.

The clubs negotiated a fee in the region of £25m for the France international, who has not featured in either of Chelsea's Premier League games so far this season, and all parties involved are confident a deal will be concluded.

Zouma has been David Moyes's primary target for defensive strengthening all summer, although the Hammers were earlier linked with Fiorentina's Nikola Milenkovic and Marseille's Duje Caleta-Car.

The 26-year-old has been with Chelsea since January 2014, when he joined the club from Saint-Etienne.

Zouma scored five goals last season, which was one of his most prolific in terms of appearances until Thomas Tuchel took over as head coach from Frank Lampard.

He was an unused substitute in the opening two Premier League games of this season, wins over Crystal Palace and Arsenal - but did start the Super Cup clash with Villarreal.

West Ham would need Zouma registered by midday on Friday for him to be available for their clash with Palace this weekend.

Could Kounde replace Zouma?

Zouma's departure could lead to the arrival of another defender, with Chelsea having consistently been linked with Sevilla's Jules Kounde.

Sky Sports News reported last month that Kounde, one of Europe's most promising defenders, and Chelsea had been in talks but he remains a Sevilla player for now and has started both of their LaLiga games this season.