Liverpool manager Juergen Klopp said his team's shock 1-0 defeat at home to Burnley on Thursday was a "massive punch in the face" and took responsibility for the champion's dramatic slump in form.

The Reds have not won in five Premier League matches, have failed to score in the last four games and have fallen six points behind leader Manchester United.

"Everything, all the English words, massive, massive punch in the face or whatever — it’s my responsibility, that’s the easy explanation," Klopp said after Ashley Barnes' second-half penalty ended his team's 68-match unbeaten league home record.