Former Liverpool star Harry Kewell has praised the Reds current front three of Roberto Firmino, Mohamed Salah and Sadio Mane as “frightening”.

The trio, who scored 91 times between them last season, having already bagged seven goals in the Premier League this term, helping Liverpool to an unbeaten start to the new campaign.

Firmino has scored once, Salah twice, while Mane is the club’s current top scorer with four goals already.

The Senegalese’s form also saw him earn the PFA Player of the Month award for August.

And Kewell, who spent five seasons at Anfield between 2003-2008, says he is awestruck by the terrific trio.

“They’re exciting. And you look at the players he has on the bench to come on. Look at their front three – it’s frightening,” he told Sky Sports.

“We always talked about Liverpool needing a 30-goal striker; for me, Firmino has been excellent. I can’t fault him. He works so hard in positions on and off the ball, which is fantastic.

“And then you have Mane and Salah driving at you – and both of them seem to have a competition to see who can score the most goals – it’s just excellent.”

Kewell was announced as the new boss of League Two side Notts County yesterday, and will take on Grimsby Town in his first game as manager tonight.