Jurgen Klopp had a second rant at officials on Monday night, after Liverpool lost to Brentford, claiming it was impossible to talk to referees.
It was not a good night at Brentford for last season's Premier League runners-up, with Thomas Frank's side beating them fairly easily.
Liverpool were 2-0 down at half time, despite Ivan Toney being out injured, with an Ibrahima Konate own goal and Yone Wissa strike just before the break putting them ahead.
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The defence for the Reds was a shambles, with Wissa also having a goal disallowed for a pretty narrow offside, and Virgil van Dijk and Konstantinos Tsimikas were both brought off before the second half.
Darwin Nunez thought he'd halved the arrears early in the second period, but was offside, having already missed a relative sitter in the first half, before Alex Oxlade-Chamberlain did score.
However, the Liverpool onslaught never came and Brentford regained their two goal advantage in the 84th minute when Bryan Mbeumo scored.
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Klopp wasn't happy about the challenge on Ibrahima Konate in the build up to the goal, although most fans believed it wasn't a foul.
After the game the German doubled down on his annoyance at the officials, claiming that talking to them was as useless as talking to his microwave.
"Yeah, but actually that's exactly the same as I would talk to my microwave, you get no response, really. It's always the same," he told beIN Sport when asked if he'd spoken to the referee about the decision to allow the goal.
"Before the season they gave us advice that the players have to be careful in these moments because the refs will have an eye on it.
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"You see in these games pretty much everything is allowed, it's always on the edge and they are using it."
Klopp also claimed that Liverpool's opponents had regularly 'stretched the rules,' when it came to attacking at set pieces.
The visitors couldn't deal with the home side at corners and free kicks, with the opening goal coming off Konate following a corner that Ben Mee initially got to.
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They then had two goals ruled out for offside, with Mee involved again in the first of those, in the first half, both of which came from set pieces.
Wissa's goal came just moments after his goal from a corner had been ruled out, after Harvey Elliott chose to dummy the resulting free kick to no one.
In his post match press conference, the former Borussia Dortmund boss suggested things were personal against his team, adding, "Do I expect it? I don't expect anything in our favour, I just think a foul is a foul, holding is holding and pushing is pushing."
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Gary Neville was certainly enjoying the result, with the Sky Sports commentator singing along to the Beatles hit "Hey Jude," which played in the stadium after the full time whistle.
The loss means that Liverpool remain in sixth place, four points behind Manchester United who are currently in fourth place.
Missing out on Champions League places would be pretty disastrous for the Anfield club, although there is a long way to go of the campaign yet.
Topics: Football, Premier League, Liverpool, Jurgen Klopp, Brentford