Arsenal hero Ray Parlour is backing Emile Smith-Rowe to replace Aaron Ramsey.
And the Arsenal legend reckons his old side need to bring in a centre-back in January if they want to continue Unai Emery's revolution.
He told The Sun: “The obvious choice is centre-half. Koscielny is getting fit again now, but whether it has taken its toll with his injury, we will have to wait and see.
“I'm sure that will be the area. The midfield is pretty strong. Ramsey leaving give it a bit of a hole there, but if Smith Rowe can continue the progress he has been showing."