Emery has an agreement with Barcelona's Denis Suarez but the Catalan club are stalling over a loan deal as they want a commitment from Arsenal to buy the player in the summer, something the Londoners are refusing to do.
"Today the players who were here are the players who deserved to be in this match".
There was no place in the Arsenal squad for Mesut Ozil (Adam Davy/PA).
"I've spoken to him about it and I know he's got a bit of loyalty towards Ireland because obviously he's played for the younger ranks so he's got that bit of loyalty to them".
"I also think the rules should say you can not change your allegiance if you play U-21, that should be the end of it". "We continue working with every player because they are all important, but today the decision was to come with these players", added Emery.
Arnautovic has been linked with a £35 million move to China, with his brother and agent Danijel claiming that the 29-year-old would like the move to happen, while West Ham have strongly insisted their star striker is not for sale.
According to Football.London journalist Sam Inkersole, West Ham are bracing themselves for Arnautovic's seemingly inevitable departure and are already lining up a host of potential replacements for the remainder of the January transfer window.
The 30-year-old has scored 41 times and registered 73 assists in 212 appearances for Arsenal since joining the London club from Real Madrid in 2013.
Marko Arnautovic salutes the crowd as he is substituted against Arsenal (Yui Mok/PA). West Ham was a bad result.
He is yet to decide whether to represent England or the Republic of Ireland at worldwide level, but Pellegrini is sure that whichever nation he opts to play for will benefit.