Bayer Leverkusen’s former midfield star Emerson says the club’s unbeaten season and a pending first Bundesliga title is all down to one man. “It’s no coincidence that people talk more about the coach than the players. They play good football. And that is the work of Xabi Alonso,” the 48-year-old told Saturday’s Süddeutsche Zeitung. Leverkusen can wrap up the title this weekend. “It’s impossible for them to lose it. Impossible,” added Brazilian Emerson, who moved to Leverkusen from Grêmio in 1997 and played 82 Bundesliga games for the club until 2000. “The large number of last-minute victories …