Sunday was always going to be an emotional occasion for Liverpool supporters. The first game after Jurgen Klopp’s bombshell that he’s leaving at the end of the season, there will have been a few tears shed at Anfield. But there was also another reason that the game against Norwich City was a bigger deal than usual. It saw the return of Andy Robertson after almost four months out injured. Robertson has rarely been injured over more than six years at Liverpool. As a result, Klopp had previously admitted that he was champing at the bit to get back on the pitch. He finally did last weekend, coming…