But in a blow to his hopes of retaining the forward, Arnautovic's brother Danijel has made it clear that the player is eager to quit the London Stadium.
Arnautovic's brother, Danijel, has issued a statement claiming that West Ham bought him for "peanuts" and should let him leave. It is close to double what they paid for him.
The Gunners have won their last two competitive fixtures, coming out on top against Fulham in the Premier League on New Year's Day and defeating Blackpool in the third round of the FA Cup last weekend.
"He is not for sale", West Ham said in a statement.
As Gold strained to produce a series of throaty chuckles, assembled journalists asked him why Arnautovic had recently began learning Mandarin, purchased property in China and asked for his latest month's wages to be paid in Yuan. "This is what he wants".
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"I'm a guy who, mentally, I'm really strong, but for maybe the first time in my life, I cried about my career because I thought it was over", Nasri told West Ham's official website.
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.
"They want to continue playing the way they have been so far and I am sure that he will have his head in the game against Arsenal".
West Ham manager Manuel Pellegrini had earlier stated his wish and belief Arnautovic will stay for the rest of the season. That is Marko. He will never change.
Will be hard to replace but i trust Pellegrini to do it. [tomster36]This whole thing about Arnautovic is annoying! Marko in this moment is a player of our team.
West Ham signed Arnautovic for a fee that rises to £25m from Stoke City in July 2017. But in some moments every club can sell some players, bring in another one and it's part of the process that you are doing to grow, so we cannot just talk about one name. I don't think he will leave'.