The defensive midfielder is free to leave the Hammers if a club meets the stipulated £3.5 million fee that was written in when signed on a free transfer from Wigan in the summer.
A number of Premier League sides have been alerted to the Senegal international’s situation this month after a blistering start to life at Upton Park.
Arsenal, Newcastle and Tottenham are all known admirers of Diame but the 25-year-old harbours suspicions that his current employers are trying to halt a potential move by getting him to sign a new contract and remove the release clause.
He has so far resisted putting pen-to-paper on a fresh deal and is reportedly cross with the club for using such underhand tactics in an attempt to force him into staying at the club.
And its expected that Diame will take severe action against West Ham by taking the matter to FIFA should they fail to comply with the contractual agreement.
Reports indicate Arsenal have already lodged their interested in signing the midfield enforcer with Arsene Wenger recently signing his praises: “He has a great presence in the games, I have seen him have a big impact.”