Pochettino is a bad loser. He's been complaining that Alexander-Arnold deserved a straight red, and he's moaning about Klopp having the temerity to react to a couple of Spurs' tackles late in the game. Klopp was actualy quite restrained in the technical area but listening to Pochettino you'd think he'd been raging around like Conte against Mourinho. Just shake hands, shut up and piss off back to London, you miserable twerp.
Being a bad loser is a vital trait in football, but he's a really REALLY bad loser. Remember his histrionics towards the end of last season? Not sure that helped them in their failed title bid.