by Julian Guyer and  John Weaver Agence France-Presse LONDON, United Kingdom (AFP) – Arsenal said Friday they were investigating how vast numbers of away fans gained access to the home sections of Emirates Stadium for their clash with Cologne, sparking ugly scenes that marred the Europa League clash. Arsenal manager Arsene Wenger said he had been preparing for a postponement at the north London ground, describing the decision to play the game as a “gamble.” Visiting fans were issued […]