Jurgen Klopp has admitted that he can see parallels between his Liverpool side and the Manchester United of old under Sir Alex Ferguson.

The Reds have gained a reputation for blowing teams away in concentrated spells, most recently scoring three times in 19 first-half minutes against Manchester City in the first leg of their European quarter-final clash.

Liverpool, who now face Roma over two legs for a place in the final, boast a competition-high 33 goals in this season's Champions League.

Klopp believes that his side's ability to turn on the style is similar to the way United performed during Ferguson's successful spell in charge between 1986 and 2013.

"Is there something with Alex Ferguson, Man United? At a specific time, they scored always twice," he told reporters. "Score, score. That is the opportunity. Score once, do it again. Use the momentum in the game. Of course we talk about it, of course we want to use that, but you still have to score.

"The team is a really enthusiastic team. In a good moment, they jump and that's really good to see. On the other hand, that's why the two Man City games were really special. We dealt with the very difficult circumstances in the two halves here and there on a high level.

"That brought us to the semis, not that we can score one, two, three in a row. In the moments when we are not in charge of the game, we are still in the game, that's a very important thing and that helped us massively."

Roma boss Eusebio Di Francesco has vowed not to sit back in Tuesday night's first leg at Anfield.