The Reds, who have won comfortably away at Chelsea and Manchester City already under the German, smashed Southampton 6-1 at St Mary's in the League Cup on Wednesday for another sizeable win in the Klopp era.

Divock Origi was among the heroes after he netted a hat-trick, while fit-again Daniel Sturridge came back with a bang by netting Liverpool's first two goals of the night.

Roberto Firmino and Christian Benteke were benched, while star Philippe Coutinho missed out through injury, and Redknapp says that there is no limit to what the 48-year-old can achieve in England.

"To come here and produce that kind of performance was incredible. It's a very good Southampton side. With no Coutinho, no Firmino. There's an energy about them. Before that they'd won one out of 10 games," he told Sky Sports News.

"At the moment there's no limit to what Liverpool can do. I have been blown away by what he has achieved so far. They have been absolutely brilliant to watch. They've been making statement after statement every game now. They're bringing young players on, the improvement in people like Jordon Ibe, Origi scoring a hat-trick.

"It's the options he has too. He's not played Firmino tonight, he's got Benteke on the bench, he's got Sturridge back. Origi, who was worried things won't work out for him, what's the hat-trick going to do for his confidence? The whole club is buzzing, he seems to have a magic wand, and he's come in and seems to have sprinkled magic dust on everyone, because they all look like completely different players."

Liverpool face Stoke City in the semi-finals of the tournament, with the first leg taking place in the opening week of January.