Unai Emery is a lesson Aston Villa can learn to bring back the European glory years.
Some are calling it Istanbul. It is also a part of Villa Teriya. And no, although Unai Emery has flagged it, Aston Villa has progressed to the quarter-finals of three different European competitions in as many seasons. But after winning the Europa League with Sevilla and Villarreal, he can now do the same with Villa…