Jürgen Klopp may be leaving Liverpool at the end of the season but former Germany midfielder Dietmar Hamann believes the German Football Federation (DFB) should give him time to recharge his batteries before approaching him over the Germany job. Klopp shocked the football world with his announcement on Friday, saying he no longer had the “energy” to coach Liverpool after a Champions League triumph and Premier League title during his nine-year reign. Germany are being coached by Julian Nagelsmann, but he only has a contract until the home Euros in June. Although a vacancy may become available i…