Liverpool manager pictured smoking in training

Klopp was pictured smoking at the club's Melwood training ground before joining his players on their team bus on Wednesday, May 6.

He hid behind a wall to enjoy a cigarette before joining his players in the team bus as they prepare for their Europa League second leg semi-final clash against Villarreal at home.

The German’s friend and former room-mate, David Wagner, spoke about his habit earlier this year revealing that the 48-year-old smoked during his playing days.

“Sometimes I spent more nights with him than with my wife,” Wagner told the Liverpool Echo about his relationship between him and Klopp.

“He doesn't snore but he smoked – although I only allowed him to smoke in the toilet, unless there was a balcony,” the Huddersfield manager said.

Klopp will be more concerned with Liverpool’s clash withVillarreal following their 1-0 defeat in Spain last week.

A place in the final is at stake and Klopp will be looking to win a trophy in his first season at Liverpool.