Jurgen Klopp insisted that refereeing errors cost his side dearly as Sunderland twice came from behind to secure a point.
Klopp's Liverpool were 2-1 up approaching the final five minutes when Anthony Taylor awarded the hosts a free-kick after Jermain Defoe fell under the challenge of Lucas Leiva.
Liverpool striker Sadio Mane — scorer of his side's second goal — handled from Seb Larsson's subsequent deadball effort and Defoe netted his second of the afternoon from the spot.


But an irate Klopp said: 'It is tough for me to accept.