However, they now have no room on their roster to sign foreign players, suggesting they may not be the club in question. "They paid £20m for him, which is nothing in the current market", read a statement from Danijel to talkSPORT.
However the Hammers are now in a fight with the Chinese Super League for their second top scorer this season with a bid of £35 million tabled for the striker, from an unnamed team from the far east. We know that we have a very good player in Marko, a lot of clubs may want him to play for them.
His agent says the Austria worldwide will continue to give his all to West Ham while he remains contracted to the club, but that he hopes a deal can be reached for a move to China.
"Until he is no longer a West Ham player, he will give everything to the club".
Within minutes, a clearly irked West Ham responded by simply saying: 'Marko has a contract and we fully expect him to honour it.
West Ham, though, are determined to keep the influential 29-year-old and are adamant he will not be allowed to leave.
The club will attempt to lure Arnautovic, who turns 30 in April, with wages understood to be £200,000 a week over a four-year contract.
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The Austrian forward may have only been with West Ham for a year at the time but Jose Mourinho wanted the forward to join him at Manchester United.
But if Arnautovic does leave, West Ham have lined up Wilson as his replacement. He wants to go to a new market and challenge for titles.
Manager Manuel Pellegrini, who worked in China with Hebei China Fortune, said: 'I talk with all of the players, always.
"Those are all rumours", said the Chilean.
Marko is professional and is preparing himself for the Arsenal game. But we need to hear also what the player wants, what the club wants and I'm not talking about Marko Arnautovic, I'm talking in general. I don't think he will leave'. Callum Wilson is believed to be their primary target, but it would likely take a huge offer to prise him away from Bournemouth.