(2:19)Open Extended ReactionsMartín Zubimendi is set to have a medical before completing his transfer from Real Sociedad to Arsenal, sources have told ESPN. Sources have told ESPN that Zubimendi has a €60 million ($68m) release clause in his Sociedad contract. ESPN reported last month that Arsenal are confident they will make the midfielder their first major summer signing despite interest from Real Madrid. Martín Zubimendi has impressed with his performances for Real Sociedad. Arsenal are targeting multiple additions this summer with a striker and a wide forward among the positions they want to strengthen.