The Liverpool FC striker became the first Brazilian player to score 50 goals in the Premier League thanks to his strike at Burnley on Saturday evening.
Firmino got on the score-sheet in the second half to net Liverpool FC’s third goal in a comfortable victory over Sean Dyche’s side.
The Brazilian forward managed to steer a finish past Nick Pope after Mohamed Salah teed up his strike partner.
Firmino had earlier teed up Sadio Mane to extend Liverpool FC’s lead after Chris Wood’s own goal in the first half.
The 27-year-old had five shots on goal, completed three successful dribbles and won four aerial challenges in an all-action display.
Former Everton captain Cahill heaped praise on Firmino for his brilliant performance at Turf Moor.
“As you say, [he is] the unsung hero,” Cahill told Match of the Day.
“For me, he’s the glue which holds this front three together.
“You talk about Mane, Salah, but without this guy [the trio would not work].
“Everything about Firmino now is about calming the situation down, winning the ball back, playing forward.
“They already know, Salah and Mane, to make the runs.
“He’s constantly the glue which makes this team work. He’s everywhere for this team. Great work rate.
“I just feel for a player like him, his goals and assists, he’s so important for Mane and Salah.”
Liverpool FC are two points clear of defending Premier League champions Manchester City at the top of the Premier League table after four games.
The Reds have beaten Norwich City, Southampton, Arsenal and Burnley in a promising start to the Premier League season.
Klopp’s side will take on Newcastle United at Anfield in their next Premier League game on Saturday 14 September.
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