Aston Villa have issued a warning to fans attending their Champions League opener against Young Boys tonight. It’s been 41 years since Aston Villa were in Europe’s elite competition but Unai Emery’s men are moments away from opening their campaign as they take on Young Boys. The Villans will want to get off to the best start possible in Switzerland, who are backed by thousands of fans for their first match in the Champions League. Emery has several decisions to make with his Villa team selection for the match, including whether to start Jhon Duran over Ollie Watkins and rest other key players….