Chelsea defender Kurt Zouma is undergoing a medical in Paris ahead of a €30m (£25.8m) move to West Ham.
The 26-year-old has been linked with a move to the Hammers for a number of weeks, with David Moyes desperate to bolster his squad depth ahead of a maiden appearance in the Europa League group stages.
West Ham have been negotiating with Zouma's representatives for some time, mirroring the long-winded talks that the club held with Fiorentina's Nikola Milenkovic, and an agreement over personal terms has now been reached.
Zouma is undergoing a medical and is expected to sign a five-year contract at the London Stadium. 90min understands that he'll become the club's highest earner - taking home around £145,000-per-week - and that represents the near 50% wage increase that his representatives were looking for in order to take him away from Stamford Bridge.
West Ham manager David Moyes has had a huge say on the club completing a deal for Zouma, convincing majority owner David Sullivan that he was the player he really wanted to bring in.
Zouma has been keen to move to West Ham ever since the club's interest became known, turning down a move to Sevilla to remain in the capital. Chelsea had hoped to use him as a bargaining chip in their pursuit of Jules Kounde, but that switch wasn't of interest to the Frenchman.
Once the deal is finalised, Zouma will become West Ham's first significant piece of business this summer, with the only other piece of concluded business a loan deal for Paris Saint-Germain goalkeeper Alphonse Areola.
The Hammers are still in the market for a striker and possibly an attacking midfielder, too - offering hope that Jesse Lingard may end up back at the London Stadium. He enjoyed a superb loan at the club last season, but has since returned to Manchester United to try and fight for his place.