Watford were always going to be up against it upon their trip to Liverpool on Saturday afternoon.The mid-table outfit were facing a Jurgen Klopp team in brilliant form recently but one impassioned to avenge defeat to Manchester United las week.It took just four minutes for the Reds to exercise the demons of Old Trafford, too, with Mohamed Salah extending his remarkable run of form in the Premier League - putting Miguel Britos on his backside before scoring.Naturally, the Egyptian doubled his and Liverpool's advantage before half-time to put the game out of sight for the visitors.They weren't done there, though, and deservedly so, Roberto Firmino also bagged a spot on the scoresheet.

Roberto Firmino bags himself another goal

The Brazilian is perhaps the most underrated member of Liverpool's revered attacking triumvirate - often doing the dirty work and tracking back in the false nine position.

However, Firmino just happens to be a lethal finisher also and scored a brilliant back heel finish from Salah's cross.

It sparked a massive reaction from Liverpools fans on Twitter with supporters revelling in how Firmino managed to beat the goalkeeper like that. Some, however, amusingly noted that it was another goal the forward had scored without looking at the goalkeeper.

His fourth no-look goal of the season!?

The trick was unintentional on this occasion but the fact he has technically scored four no-look goals this season is both uncanny and tweet-worthy. Check out the reaction:

Firmino first brought fans to the attention of his no-look skill in a Champions League clash with Sevilla and has whipped out the stunt twice since, often when he has an open goal.

On this occasion, his mere position stopped him from taking a good look at the 'keeper yet it was still a sight to behold.

The Watford game has proven another example of just how lethal Liverpool's attack can be and just how confident Firmino is with his game right now. Brilliant stuff.

Do you think Liverpool have the best attack in the Premier League? Have your say in the comments section below.