Firmino has played a more solid role in recent weeks, as a consequence of this Mohamed Salah has the opportunity to perform in the middle.

Not least, Jenas believes the fact that the Brazilian has the ability to annoy United, if it will be provided will act as a focal point of the team.

"Liverpool is located in a striking space, they are not exactly for example fluent in the attack, but they are defensively solid," Janas told the BBC.

“With some players, when they lack conviction, they want to go on a ball hunt.

"Roberto Firmino has the ability to perform deeper in the middle, but you wish he was high, turning lawyers and clicking in the last thirty percent.

"He must be higher in the background.”

Salah scored 4 goals in his own last 2 games, playing as a striker, while Firmino contains only 6 the whole season.

The Egyptian will face the former chief Jose Mourinho, who implemented it in Chelsea in 2016.

Before a trip to Merseyside Mourinho welcomed the way Salah jumped from his own insignificant spell on Stamford bridge.

"Salah, who I had known in Chelsea, was the player of the plan. At the moment, he is one of the best in the world," Mourinho said.

"Since then, it has developed incredibly well at all levels.

"He was fast fragile boy, and how he frisky powerful man. On a physical level, great.

"He was not psychologically adapted to the Premier League when he came from a small club in Switzerland [Basel] to a huge club in the UK.

- I played with him in white HART lane and Etihad, and it was very good for him.

"Now he plays anywhere, in Barcelona, in real Madrid, and he's like,' I'm Mo Salah and I'm not afraid of anyone.’

"Liverpool contains a large number of powerful sides, but it is nuclear power.”