Mikel Arteta has confirmed that Bukayo Saka is out of Sunday's game with Manchester City.
The winger has been dealing with an achilles issue and has not featured for the Gunners since the Carabao Cup final defeat by City in March.
Arteta also gave an update on winger Noni Madueke, who had to come off during the Champions League match with Sporting on Wednesday, but is hopeful the 24-year-old could be available.
"We have another training session tomorrow. He didn't look that bad after the game and he was quite positive," Arteta said of Madueke
"He is a player that pushes through pain so I am hopeful that he will be available but we will have to wait and see if he will be ready for tomorrow."
However, Arteta would not give specific updates on Jurrien Timber, Martin Odegaard or Riccardo Calafiori with "another training session tomorrow".
"We will try again. Some players are quite close but the turnaround is short.
"We will try tomorrow to push everybody and if they are in good position they will be part of us but if they are not, they will not, like they have not been for the past few weeks unfortunately."
