And it was in 2017 when a youngster arrived for the first day of pre-season, only to catch Klopp's eye for the wrong reasons.
Speaking to Zenit's official website, Lovren said: "I will tell you a short story. In 2017, on the first day of preseason training with Liverpool, one 18-year-old player, I will not name him, came to training in a Mercedes with a gold Rolex on his wrist."
Lovren then recounted the conversation with Klopp saying: "'What car did you come here in?'
"'A Mercedes,' the youngster replied.
"'What's that on your wrist?' Klopp asked.
"'How many matches have you played for the first team?' Klopp asked.
"'None,' replied the teenager."
Lovren continued by joking: "Yeah, he came in with two gold watches! The next day he arrived without a watch and a normal car."