Bayer Leverkusen defender Jonathan Tah said he has coach Xabi Alonso to thank above all for his sporting development. “Xabi Alonso has taken me to a new level. Now I’m even more unpleasant because I always have my opponent in my sight,” he told the Die Zeit weekly in an interview published on Thursday. Tah said that Alonso helped him improve not only his defending skills, but also his build-up play. “The coach is always working on this with us defenders,” he said. Furthermore, Alonso is not a coach “who stands on the sidelines, remains silent and watches.” If he doesn’t like something, he inte…