"That is a good warning for us that we have to produce an absolute total offensive performance". Santi Cazorla also is anotherlong term injured player while Danny Welbeck is doubtful.
Federico Fernandez is set to return, though, after missing the cup game because of a nose injury.
It now seems the player believes that playing under a coach with a more attack-minded approach, may well help him return to the type of form that saw him become one of Europes most highly rated attacking midfielders during his days in the Bundesliga.
Mkhitaryan is now expected to make his debut against Swansea City on Tuesday, having been cup-tied for Wednesday'sCarabao Cup semi-final win over Chelsea, and Henry is expecting big things from the playmaker during his time in north London.
"Regardless of that, this season we have had so many games where we were not up to the standard we needed to be and this is something we need to address for the rest of the season". I know that he's demanding.
It is clear, though, the manager sees the relationship between Ozil and Mkhitaryan as key to Arsenal's hopes of forcing their way into the top four.
"I have to say, sometimes when you look back and you speak about coming to 200 clean sheets in the Premier League, you see how many games everybody else needed to get there".
Swansea boss Carlos Carvalhal was full of praise for Arsenal before tonight's game but claims his side won't sit back and play for a draw. They could have up to 70 per cent possession so his creativity will prove useful.