West Ham defender Winston Reid will have a buyout clause of £20m should he sign a new deal with the Hammers, according to The Sun.
Manager Slaven Bilic is reportedly eager to keep his side's best players and Reid is among them, despite the Irons' inefficiencies in defence so far this season. West Ham have conceded 54 Premier League goals this season, the fourth worst record in the competition.
The London Stadium club are eager to stave off interest from rivals teams and will offer Reid a new deal in order to extend his seven-year stay in Stratford.
The New Zealand international has made a total of 199 appearances for West Ham, scoring 10 goals, and could feature in his 200th game when West Ham travel to the Emirates to take on Arsenal on Wednesday.
The new deal is said to be worth £70k-a-week, £5k more than the contract in the offing for star forward Michail Antonio. Top Premier League sides are said to be interested in Reid, but they could be forced to fork out £20m should they wish to sign the 28-year-old.
Reid signed a six-year contract two years ago so it is possible the new deal will not include an extension. The former Midtjylland man is widely regarded as West Ham's most important defender with new signing Jose Fonte proving to be unconvincing since signing from Southampton in January.
West Ham are currently 14th in the Premier League, just six points ahead of Hull City who sit in 18th place.