It was a kick out from Lloris that led to that goal. Hugo's kicking is awful - always has been. And Liverpool have picked up possession from his kicks three times so far. They know his kicks won't reach halfway, and arrange themselves in the best areas to win the header or the second ball.
They did here. Sprayed it wide to Robertson. And our paper-thin defense collapsed.
Won't even bother mentioning Trippier's role, because by now, there's no point. He's beyond crap, and we all know it.
But we learn new and interesting things about our mental fragility and threadbare squad every game. In the middle of our worst run in almost a decade, it's interesting to watch, in an out-of-body-experience sort of way.