Madrid: Real Madrid midfielder Isco Alarcon has said that the Champions League final against cross-town football rivals Atletico Madrid at San Siro Stadium in Milan on May 28 "is going to be a difficult battle". "It's going to be a difficult battle... Atletico are tough, they know how to read the game well, especially against teams who take the initiative. They've knocked out Barcelona and Bayern," Isco said according to Real Madrid's website on Tuesday. As for being called up for Spain's provisional Euro 2016 squad, Isco said: "I found out in the changing room when I saw my mobile and I'm very happy and proud to be on the list." Isco added he was surprised at the inclusion of his team-mate Lucas Vazquez in the La Roja squad, reports Efe. "He got a little ovation because he wasn't expecting it, but he's shown with his hard work that he deserves to be on the list," the 24-year-old said of Vazquez. "He's really happy and proud because it's something that he's achieved with his work. We're really happy for him."