Jurgen Klopp said being Liverpool manager is not just about “when the sun is shining” as he dismissed suggestions his squad is in decline.

The Reds host Napoli on Tuesday having already qualified for the knockout stages of the Champions League.

However, they have struggled in the Premier League and sit ninth after winning only four of their opening 12 matches.

“It’s not a quick fix but we will not stop fighting,” Klopp said.

“People look at me and they say ‘he looks tired’ or whatever but I’m not. I cannot give that excuse. My job is not only to be here when the sun is shining and somebody gives us a trophy.

“My job is to be there when we go through a really rough period and I will do that with all I have.”

Liverpool’s tally of 16 points marks their worst points return after 12 games since Klopp took charge of the club in 2015, with successive defeats by strugglers Nottingham Forest and Leeds leaving the club 15 points adrift of leaders Arsenal and eight off a top-four spot.