Laurent Koscielny could make Arsenal's clash with Chelsea tonight.

The Daily Mail says Koscielny reportedly returned to training over the weekend, with manager Arsene Wenger said to be keen to give the France defender every opportunity to prove his fitness. The problem for Wenger is that the nasty knee wound Koscielny sustained at the Etihad Stadium is liable to re-open.

Medics fear the positioning of the cut, on the patella, means it is more likely to split because the skin stretches whenever the knee is bent, which could lead to a lengthier spell on the sidelines.