Arsenal boss Unai Emery admits there could be several departures before the European market shuts on Monday.

Nacho Monreal has been offered the chance to return to Spain before the window shuts on September 2, with Real Sociedad keen on a £3m deal.

Emery is willing to let him go but must decide whether to accept the move before Sunday's north London derby.

Asked if Monreal will go, Emery said: "Yes, he's one possibility."

"We finish here our transfer window and in Europe it's going to finish on Monday.

"We cannot sign another player, but we have some players the possibility to leave in next four days. The club is working. Some players know their situation."

Shkodran Mustafi and Mohamed Elneny could both yet depart before Monday evening.