During training, Alexandre Pato clearly decided that he wanted to have a joke with the former Borussia Dormund manager.
The photo in question is an image of Pato's legs, with the Brazilian suggesting that his knee bares a canny resemblance to the bespectacled German.
The photo was joined by the message "Klopp are you here", as can be seen below.
pato
— əvrən (@evrenmanchester) 25 de junho de 2017
dikkatli bakinca dizde klopp var gahaha pic.twitter.com/lXZr0y9dlI