Arsenal are lining up a surprise move for Olympiacos goalkeeper Roberto according to reports. Spanish publication Marca are claiming the Gunners have enquired about his availability with the Greek club demanding a fee of £4.3 million. In other news, Arsene Wenger has insisted he is not interested in signing Sevilla midfielder Grzegorz Krychowiak. It was reported Wenger sent scouts to watch the Polish international, and was prepared to meet his 30 million euros release clause, however the Gunners boss has refuted those claims. And finally, Danny Welbeck is set to be out for three more weeks as he continues his recovery from a long-term knee injury.