Aston Villa’s deal to sign Chelsea left-back Ian Maatsen is nearing completion and some fresh information on the proposal has now emerged. Unai Emery is preparing to welcome Chelsea left-back Ian Maatsen to Aston Villa after beating off interest from Borussia Dortmund for his signature. Villa’s PSR concerns have forced them into selling Douglas Luiz to Juventus and alleviating those problems has allowed them to splash the cash on Maatsen. The 22-year-old starred on loan for Dortmund last term as they reached the Champions League final before losing to Real Madrid. There are several who are sur…