Aaron Ramsey has suffered a setback over his bid to return to action at Arsenal.
Gunners boss Arsene Wenger revealed the news after their 2-2 draw against Southampton.
"Aaron Ramsey is out for longer than we expected as he had a little setback yesterday in training so I couldn't bring him here," Wenger confirmed.
"It is the same muscle. He felt it a bit again so we have to be cautious this time."
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