The 2-2 draw against a team struggling in the relegation zone was undoubtedly a setback for Liverpool because teams with title aspirations win at places like the Stadium of Light, as leaders Chelsea did just a fortnight ago.
Klopp has explained how the club, often a flowing, free-scoring outfit in games this season, held out for a 1-0 win. Plus, his sluggish control indirectly led to fatal loss of possession during the game, from which Sunderland won their first penalty.
Although that match passed by without any major refereeing controversies, his decision to award the two spot kicks to Sunderland prompted many Liverpool to vent their frustration at him.
"It's not the worst mistake in the world and I don't want to say it is, but it's hard".
Klopp made just one change to his starting XI with Sturridge coming in for injured Jordan Henderson in a rejigged formation.
"If I have no choice, then the players which are fit will play".
"I could have been in here shouting that there should have been another handball".
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Berlin attack: man held over phone link freed
The Tunisian, who pledged allegiance to IS in a video, was stopped near a deserted station after eluding capture for four days. On Wednesday, Italian police released a CCTV image of Amri taken just hours before he was shot dead.
Liverpool FC beat Manchester City, a top four and champions league side, the preseason favorite to win the Premier League title, on New Year's Eve.
"We can play better football but I'm not sure if you can play better with that break".
James Milner came off at half-time with a calf injury while Sturridge, who scored on Wearside for the fourth successive season, came off late on after taking a knock on his ankle but Klopp claims neither is serious.
"If you said before the game would you take a point I'd have said yes".
"I thought the energy levels were spot on today".
Only an inspired performance from Black Cats keeper Vito Mannone denied Liverpool further goals, before Mane needlessly stuck out an arm to block Seb Larsson's free-kick, costing his side dearly.
However, Reds boss Jurgen Klopp will surely see it as two points dropped after his side led twice, had 71 per cent of the possession and had 15 shots on target. "I hope that it could alter, but at the moment I will go with the standard line that we have got at the moment".
"If I had been German, you might have been saying, 'Great, you're doing something different'".