Arsenal could sign a defender during the January transfer window after head coach Unai Emery said it would be a "good option" to add to his choices at the back and help ease an injury-hit defence.
Emery explained his thinking, per Mark Mann-Bryans of Press Association Sport (h/t Daily Mail): "I think if we can take one player to help us at centre-back, I think it's a good option."
However, Emery also pointed out how he is prepared to wait and assess those set to return from injury: "The transfer (window) is not easy.