Edson Alvarez has opened up on the one thing was said in the West Ham United dressing room before the Bayer Leverkusen clash. And it should be a big learning curve for David Moyes. West Ham midfielder Edson Alvarez put in a superb performance for his team against Bayer Leverkusen in the Europa League on Thursday night. In truth, the same can be said for every Hammer who took to the pitch. It was a really positive night for the club all-round. There were two sour notes though – the fact that we couldn’t beat Leverkusen by two clear goals and Lucas Paqueta’s absence at the London Stadium. That s…