Jurgen Klopp believes Liverpool will play a resurgent Manchester United team different from the one that lost at Anfield back in December.
The Red Devils succumbed to a 3-1 defeat at Anfield in December last year, days before the Mourinho’s sacking.
Klopp, however, admitted credit should be given to caretaker manager Ole Gunnar Solskjaer for getting the best out of his squad.
“They have found a solution and it has worked out,” Klopp told Sky. “Since Ole was there pretty much everything changed.
“We see the Pogba that Man Utd signed a couple of years ago, and [Ander] Herrera in outstanding shape.
“They were all good before but now they are full of confidence and use their potential. That makes a big difference. Sometimes you need changes, and in football, it’s very often the manager, that helps. In this case obviously, it helped.
“It is a different side, a different style, but still United. They have all different ways in their toolbox to get results.”
Solskjaer’s only loss till date is a 2-0 defeat to Paris St Germain in the Champions League, having won 11 of his 13 fixtures since taking charge.
Ahead of the Reds’ trip to Old Trafford on Sunday afternoon, Klopp said: “He has the quality and he had the luck in the right moment.
'Can you imagine if they brought in a new manager? He deserves it 100 per cent'
— MailOnline Sport (@MailSport) February 22, 2019
“He’s in charge and there is no doubt that he will be the manager next year as well, that’s clear.
“Can you imagine one situation when they say ‘we are bringing in another manager’? Then a new manager will lose one game and that’s not possible.
“He deserves (the job) 100 per cent, he did everything that you have to do to be successful with them.”
A win for Klopp’s men will see them return to the summit of the Premier League, three points ahead of closest rivals Man City.