Klopp watched as Philip Bllings’ only goal of the match gave Bournemouth all three points against Liverpool at Vitality Stadium.
Mohamed Salah missed a penalty for Jurgen Klopp’s side during the encounter.
Speaking at his post-match press conference, Klopp said Bournemouth defeated his team because Liverpool failed to convert their penalty and did not create enough scoring chances against the host in the second half.
Klopp said, “I thought we started OK in the second half, were a bit clearer in our situations, get a penalty, miss the penalty. Now it’s of course, hypothetical – it looked a little bit for me like if we score there, it doesn’t make the game better from the first half, but it would give us a proper boost.
“But we did not score from that and then you could see we were a bit in a rush, did not create enough, in counter-attacking moments Bournemouth fought massively, with really big passion, won these balls and then the Bournemouth boys showed really their quality, how they kept the ball.
“We could not defend them in the first place so we had to track back and defend them there. I can’t remember, maybe one big chance for them or a big finish, the rest we defended but it is still pretty exhausting and then you’ve a long way back into their box, and so we lost the game. Very, very, very frustrating, yeah.”
Liverpool will now face Real Madrid in their next game in the Champions League on Wednesday.