Jurgen Klopp’s announcement on Friday has hit everybody hard. The news came completely out of the blue. No one had seen it coming. Not even his own players. As revealed yesterday by Andy Robertson, even he and his teammates were surprised. Which just goes to show just how much of a professional Klopp is. Even though he made up his mind in November, he never gave anything away. But it’s not just Klopp’s current players who have been surprised by the Liverpool boss’ decision to leave the club. There was a former Liverpool star who left the club in the summer, who revealed he was quite emotional …