Arsenal boss Arsene Wenger admits long-term concerns over Laurent Koscielny.
Koscielny's long-term fitness is major concern. The Achilles injury is a long-standing problem, which has deteriorated in recent weeks.
"It has got worse, he finds it difficult to play with at the moment," said Wenger, who insisted France international does not require surgery.
"If you wait for it to be better, it can be a short time. If you want to get rid of it completely, it is long term.
"We will monitor him and as soon as he can take enough pain again he will play."
