Arsenal are working on a deal to sign Paris St Germain defender Layvin Kurzawa.
The PA news agency understands talks between the Gunners and the Ligue 1 giants have progressed past initial stages.
Arsenal are short on options in defence due to a number of injuries and - if Mikel Arteta is to strengthen his squad during the current transfer window, adding numbers in that area was always going to be a priority.
Kurzawa, 27, is available on a free transfer in the summer when his contract expires but it is believed Arsenal are keen to do a deal to bring him to the Emirates Stadium this month.
Asked about his defensive headaches on Wednesday, Arteta replied: "We are playing with full-backs that are not full-backs.
"They are wingers or central midfielders and could we afford to lose full-backs? No, but we don't have any full-backs."