West Ham have turned down three offers for Andy Carroll from Chinese Super League clubs, Sky sources understand.
Tianjin Quanjian, Hebei China Fortune and Shandong Luneng firmed up their interest with bids ahead of the Chinese transfer window closing on Tuesday, but West Ham have told them the striker is not for sale.
Carroll, 28, has been with the Hammers since 2012, initially joining on loan form Liverpool before signing permanently for a fee of £17.5m in June 2013.
The forward has struggled with injuries since joining the Hammers and has been restricted to just 12 Premier League appearances this season.
He is currently sidelined with a groin problem but manager Slaven Bilic is hopeful he will be fit for the Monday Night Football clash with Chelsea.
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Carroll has scored six goals this season with four of those coming in his last four games including a sensational overhead kick against Crystal Palace.