Injury-plagued Abou Diaby has seen his comeback delayed again.
Arsenal midfielder Diaby is not fit enough to be in Monday's squad to face Newcastle after picking up a minor groin niggle in his comeback game for the under-21s this week.
It is another cruel blow for the Frenchman who has been out for 13 months after a cruciate knee ligament injury which is the latest in a long line of problems to have dogged his career.
Gunners' boss Arsene Wenger confirmed the "minor setback" and said: "He played one half [for the under-21s].
"How far away he is is difficult to say but he had a little groin problem after the game so will not be available for Monday."
Wenger is likely to have Thomas Vermaelen back after injury but Kieran Gibbs is still out.
"Everybody [who] was available at Hull last week will be available," said Wenger.
"Vermaelen could be back so everybody should be there [but] not Gibbs, not Diaby yet. Of course Wilshere and Walcott are still out as well."
Wenger, meanwhile, also warned the quality of coaching in the Premier League will suffer if clubs keep hiring and firing managers.
In the week that Manchester United axed David Moyes, Wenger says that potential bosses will be put off from becoming managers.
Wenger added: "I'm sad that he (Moyes) wasn't given time and I wish him well. I think it's just part of what the modern game is now. There is no time available for people to do their job and that is a big threat for our game.
"If you want quality people in any job, you need to give them time to develop and to become good, or people with the quality will not come into our job anymore.
"The average [job life] expectancy of an English professional club at the moment is 11 months, and that is quite unstable.
"Every guy who is married, has a family, will have a big hesitancy before he goes into that game.
"That means the quality of the coaching and the quality of the managing is under threat, because it will not attract quality people anymore.
"You know, if you get to a point where you sack your manager with every defeat, the guy who comes in will lose games as well. So that trend will become quicker and quicker.
"Why are we living in a society now where it is every time quick, the quick intelligence is dominating the slow intelligence.
"That means every time after the game it is quick sanction, quick judgment, and there is no distance anymore with the event."