Juergen Klopp. Photo: MATTHEW CHILDS/REUTERS

Liverpool manager Juergen Klopp defended Loris Karius after the embattled goalkeeper's error led to a goal in a pre-season friendly win over Tranmere Rovers on Tuesday.

Karius, who made a pair of mistakes against Real Madrid in May's Champions League final, spilled a free-kick, which led to Tranmere's opener in the Reds' 3-2 win over the League Two side.

Afterwards, Klopp was quick to point out Karius wasn't the only one who erred on the night.

"Nobody likes that goal, but if we talk about the second goal - I think it was Millie's [James Milner's] fault," he told reporters.

"Two brilliant footballers make this mistake, but we don't talk about it."

Karius took plenty of heat for mistakes that handed Real Madrid their final two goals in their 3-1 final win in May.

He was then ridiculed by many Liverpool fans on social media for a glossy video of his holiday to the United States that showed him both working out and enjoying life in Los Angeles.

After his latest gaffe, Klopp called for the intense scrutiny of the 25-year-old German to stop. 

"Loris concedes that goal, but we cannot start a story always after each mistake,"he said. "Mistakes will happen.

"I don't like it, he doesn't like it, but it will happen, so let's carry on and make the best of all these situations by learning from them.

"You all can stop them immediately. You never ask again, that would be one little step.

"It will probably happen for a while until he has a few fantastic games, that's how the situation is."