West Ham have insisted Marko Arnautovic will not be sold to China despite his agent publicly stating that the Austrian forward wants to leave the London Stadium.
A Chinese Super League club, reported to be champions Shanghai SiPG, have made a surprise £35m bid for the Hammers' top scorer, with a bumper wage deal being offered of around £200,000 over four years.
The sums involved seems to have turned Arnautovic's head, with his brother Danijel, who also ascts as his agent, revealing to the media that the players wants West Ham to sell him.
But a Hammers spokesperson said: "Marko has a contract and we fully expect him to honour it. He is not for sale."
Manager Manuel Pellegrini has said he was determined to keep Arnautovic, who has scored eight goals this season, including three in his last two matches.
Marko wants to chase titles in China
But Danijel Arnautovic, who has agitated for a move for his brother before, issued a statement to talkSPORT in which he claimed the striker has a "great desire" to go to China.
"West Ham bought Marko for peanuts," the statement read. "They paid £20 million for him, which is nothing in the current market.
"They bought him to keep them in the Premier League last season and he did that. He took every award at the club; best player, signing of the season and the players' award.
"Now West Ham have a fantastic offer. It is close to double what they paid for him.
"He wants to go to a new market and challenge for titles. This is what he wants. It is his great desire that West Ham accept the offer from China.
"He knows the West Ham fans love him and he has a special connection with them, but things move on, this is the world of sport and he hopes they can understand.
"Until he is no longer a West Ham player, he will give everything to the club. He hopes the fans can respect his wishes."
Pellegrini - Arnautovic fully committed
Pellegrini, who substituted Arnautovic against his will after only 20 minutes in Saturday's FA Cup win over Birmingham, had earlier shrugged off the speculation.
"Those are all rumours," Pellegrini said. "We know that we have a very good player in Marko, a lot of clubs may want him to play for them.
"I want to keep him, of course, but you never know what might happen in the future."
"I think Marko and all the other players involved in rumours have their heads here and want to continue playing the way they are doing so far.
"I am sure his head will be in the game against Arsenal and it will not affect his performance."
Pellegrini also hinted Samir Nasri could be in line to make his Premier League debut against his former club.
The 31-year-old played 58 minutes of West Ham's 2-0 FA Cup third round win against Birmingham and Pellegrini believes the midfielder can make an impact when West Ham host the Gunners on Saturday lunchtime.
He added: "I think it was very useful for him to play 60 minutes in the FA Cup.
"He has been working hard for around 40 days and he has demonstrated he is able to be involved against Arsenal, at least in the squad list."