Liverpool had the far from ideal preparation following the conclusion of the international break with injuries and late returns all but seeing the XI pick itself.
But there would be no lingering effects of the break as the Reds turned on the style from the first minute to the last, with Watford simply left to watch on as Liverpool flexed their muscles.
And a Roberto Firmino hat-trick would ensure all of the front three got on the scoresheet in what was another confidence-boosting display that maintains the unbeaten start.
Talking to to LFCTV post-match, Mane had nothing but praise for the team effort that was on show and the contribution of his fellow forwards:
“From the beginning we had a very, very fast start and created many chances. We scored five goals, five wonderful goals. I think we deserved to win today.
“I think [Salah’s was] a better goal than City! But it’s no surprise for us because we know his quality, one of the best players in the world. He showed it today.
“Bobby as well – he showed it – one of the best for sure in the world. I’m very happy for them.
“Especially Bobby’s hat-trick, it was not an easy time for him with injuries but he is back and I’m happy for him.”
It was a sentiment echoed by his teammates as the Reds hardly had to break a sweat at Vicarage Road with the team in perfect harmony.
And it wouldn’t be a post-match celebration without James Milner and his hashtags, with Firmino and Salah getting the love this time around as they offered the “perfect start to the weekend”:
The victory was the perfect return to domestic action and it highlighted the dominance in attack once more with the match the eighth time this season that more than three goals have been scored.