Jurgen Klopp frustrated by challenges during Liverpool's defeat of Burnley

Klopp spoke of his concern over the idea of letting the game flow more and stressed the importance of protecting players, adding: "Watch wrestling if you like these kind of things."

The Reds won 2-0, with Diogo Jota scoring an 18th-minute header and Sadio Mane doubling the lead with a 69th-minute strike.

Klopp told BT Sport after the match: "Burnley was never a game where you are just flying or whatever and can outplay them, or at least not for us.

"We always had to be ready for a proper fight. We were today in a really difficult game, because you saw these challenges with (Ashley) Barnes and (Chris) Wood and Virgil (Van Dijk) and Joel (Matip).

"I'm not 100 per cent sure if we are really going in the right direction with these kind of decisions. It feels like we go back 10, 15 years back to when we said 'oh, that was the football we wanted to see'. It's just too dangerous.

"You cannot really touch the situations. It's just hard. The rules are what they are, but the thing is you can't defend these situations.

"(Nick) Pope is the first one, then (Ben) Mee and (James) Tarkowski the next one, and that's how it makes the game really tricky. That's not the only balls they played, but they are the most difficult to defend."

He added: "I heard we want to let the game flow. Now we always have these situations, we had the second goal from Brentford (against Arsenal on August 13) - it must be a foul. These kind of things.

"It's all fine, we need to get used to it, but I think we have to think about it maybe a second or a third time.

"There's one message now, let the game flow, and now nobody knows exactly what that means.

"I like all decisions in favour for the offensive team, that's fine. But we have to stick to protecting the players.

"We cannot deny that completely and say 'that's a challenge, I love watching that'. Then watch wrestling if you like these kind of things."