Liverpool exhibited their free-flowing, free-scoring attacking prowess once again in their 7-0 demolition of Spartak Moscow.
The Reds qualified for the last 16 of the Champions League on top of their group having netted 23 times in six matches.
But sterner tests are still to come and bigger teams will not afford Jurgen Klopp‘s men the same kind of flimsy rearguard efforts, warned Roy Keane.
Jurgen Klopp’s side looked irresistible in attack as they scored seven against Spartak Moscow
The ITV pundit said: ‘They’re certainly in great form at the moment, they are scoring for fun and it was a comfortable night for them.
‘Their attacking players enjoyed it but the big tests are yet to come for Liverpool, clearly they’ve beaten these so called lesser teams, but they’ve beaten nobody yet.
‘It’s lovely to watch but they wouldn’t get that time and space against a decent team, it’s as simple as that.
‘Give quality players time on the ball like that and they are going to punish you. The reality is if they are playing a top team in Europe they won’t get the time and space, they won’t get those opportunities.
The Reds topped their group but will now face more serious tests in the last 16
Keane warned that Liverpool would not be afforded so much time and space against big teams
He added: ‘If you know this game then you understand they have so much bigger and tougher tests coming up.’
Lee Dixon agreed with his colleague and believes the Liverpool questionable defence will also be tested in the knockout stage.
‘It wasn’t that long ago we were talking about Liverpool’s defence and how many goals they’ve let in, how the back four were all over the place, I think they have improved in that but I don’t necessarily think they’ve been tested enough to know that’s gone away,’ he concluded.
Lee Dixon thinks there remain questions over Liverpool’s defensive capabilities