By Editor Wayne Veysey | Former Evening Standard, Press Association and Goal chief correspondent with 17 years experience of breaking big stories, including exclusives like this

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Manuel Lanzini has agreed the terms of a five-year West Ham contract worth £18.2million, Football Insider sources understand.

The 23-year-old attacking midfielder will sign a deal worth £70,000-a-week that runs until 2021 after reaching an agreement with the club.

As reported by Football Insider on Wednesday, the Hammers will imminently confirm the signing of Lanzini on a permanent deal for a fee of around £7.5million.

The 23-year-old attacking midfielder has been on a season-long loan at West Ham from Al Jazira in the United Arab Emirates and has impressed sufficiently for manager Slaven Bilic to sanction a permanent contract.

The Argentine is set to more than double his current salary of £30,o00-a-week.

West Ham chairman David Sullvian revealed earlier in the season that his club had a “watertight” agreement in place to make Lanzini’s loan a permanent transfer.

Speaking in December, Sullivan said: “We have until April to make it permanent but we’ll probably due it before the due date.

“By February or March, he will be a permanent West Ham player. He’s already sensational and he could be as good as any player in the world.”

Slaven Bilic is confident Dimitri Payet will sign a West Ham contract extension

Happy hammer: Lanzini has been a key figure under Bilic this season

A deal has been in place for a number of weeks, but West Ham wanted to confirm Lanzini’s fitness after a thigh injury.

Lanzini was in sparkling form before sustaining the injury shortly after Christmas. In total, he has scored six goals and supplied three assists in 23 West Ham appearances this season.

In other West Ham news, Winston Reid has been given the all-clear to feature against Chelsea on Saturday after recovering from concussion.