By Jake Polden Trent Alexander-Arnold has shared further details on Jurgen Klopp’s bombshell Liverpool exit announcement, claiming the gobsmacked squad was left asking: “Is this a joke?” The Reds right-back recently revealed his Liverpool team-mates were “shook for hours” after Klopp broke the news that he would be standing down after nine successful years at the end of the season. He has now added further details surrounding the announcement, including how Klopp called his players into a morning meeting – something he’s never done before – to explain the motivation behind his decision. Alexan…