Caoimhin Kelleher admits Liverpool's front three are in "unstoppable" form as the extent of their remarkable start of the season emerged.
Roberto Firmino scored his second Reds hat-trick and Mohamed Salah and Sadio Mane also netted as the Reds romped to a 5-0 Premier League triumph at Watford on Saturday.
The trio now have 22 goals between them after 11 competitive games, far outstripping their previous best at this stage of the season of 13 which was achieved in the title-winning campaign of 2019/20.
The Vicarage Road victory was only the second time this campaign Firmino, Salah and Mane have started a game together.
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And an admiring Kelleher said: "I train with them every day and sometimes they are just unstoppable, you can't do anything.
"To watch them in full flow is a joy to watch.
"They all gel well together and Bobby is getting in the right positions to be able to tap them in, and that's not an easy thing.
"They are in such great form at the moment they are pretty much unstoppable."
Asked if Salah - who scored another astonishing goal at Watford to move on to 10 in 10 games for the season - was now the best player in the world, Kelleher responded: "It certainly looks like that. He's score some unbelievable goals this season and can't stop scoring.
"He is in some top form at the moment so, from my point of view, definitely."
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Kelleher was making only the third Premier League appearance of his career with Alisson Becker unavailable due to the late finish of Brazil's World Cup qualifier against Uruguay in the early hours of Friday morning.
The Republic of Ireland international was largely unemployed until making a save late on to turn Ismaila Sarr's fierce drive on to the post to preserve his second top-flight clean sheet.
"It's not easy obviously, but playing for a team like Liverpool where for the majority of games we are going to dominate possession I'm not going to have much to do," said the goalkeeper.
"But when I am called upon, that's the most important time. Thankfully I was able to make a save and keep the clean sheet."
Kelleher, speaking to liverpoolfc.com, added: "I had the international game (with Ireland) on Tuesday and knew I'd be playing after that, but most of our players came back on Thursday so we only had one or two days to prepare.
"With Watford getting a new manager, we were unsure on what they might do, so we just focused on ourselves and what we could do, and thankfully that paid off.
"It was a proper team performance where everything we did came off. Scoring five goals was amazing and keeping a clean sheet made it a great all-round team performance.
"All the focus is on winning the league, that's what we want to do. Thankfully we are going in the right direction."