The Reds were held to a hugely frustrating home draw with West Brom on Sunday
Trent Alexander-Arnold believes Liverpool were punished by a lack of focus against West Brom.
And the Reds right-back says that will have to change if they are to emerge from Wednesday's trip to Newcastle with maximum points.
Liverpool dominated the possession stats at Anfield on Sunday, ending the first half with over 80 per cent of the ball.
Sam Allardyce's Baggies were able to frustrate the champions , however, following Sadio Mane's 12th-minute opener, eventually forcing their way back into the game thanks to Semi Ajayi's late header.
Alexander-Arnold is expecting a similar pattern of play at Newcastle and urged his team-mates to keep their concentration for what is their final game of an unforgettable 2020.
"I think we kind of know that it's going to be a similar sort of game [to West Brom]," Alexander-Arnold told Premier League Productions.
"They'll probably have the idea of wanting to stop us from doing what we want to do and then counter really.
"But it's the Premier League, so anything can happen – we saw that [against West Brom].
"We know that if we're not at 100 per cent then we don't deserve the three points.
"That's something we'll be looking at and making sure that our mindset and mentality is right throughout the whole 90 minutes because it wasn't [on Sunday] and we got punished for that.
"It's going to be a difficult game. There's never going to be an easy game in the Premier League, so we're not expecting that.
"But I think we know that if we're at 100 per cent then we have the confidence to go there and win – but only if we're at 100 per cent."