Arsenal Wenger has confirmed Arsenal will complete the £50million double swoop of Shkodran Mustafi and Lucas Perez in the next 48 hours. The duo were in London on Friday to undergo medicals which have now been completed with just the final paperwork to be concluded before the deals can be ratified. Mustafi, the club's No 1 central defensive target this summer, arrives at the Emirates from Valencia in a deal that could be worth up to £35m.