Italian media praised Bundesliga champions Bayer Leverkusen after their 2-0 win at Roma in the first leg of their Europa League semi-final tie on Thursday evening. The Corriere della Sera newspaper called Leverkusen, who are unbeaten in 47 games, “the perfect machine.” “If you give the unbeatable a goal when the game is on the borderline (…) the unbeatable become even more unbeatable,” it wrote. The Repubblica saw Roma in a “valley of death” after a “dark night between mistakes and gifts. A miracle will be needed in Leverkusen.” There is a simple recipe for this: “Score two goals at the BayA…