For those supporters who seemingly place as much stock in transfers as they do results on the field, it's a phrase which, when uttered, is in danger of causing their temperature to rise more than a UK heatwave.
It would be wise, then, to stand well back if you refer to any current squad member as potentially being like a new signing in the forthcoming campaign.
In fairness, shiny new faces are by definition far more alluring or appealing than refurbished old ones. Particularly when they have been at Liverpool for seven years.
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But there is a sense among the Reds squad this season may prove something of an Indian summer for Roberto Firmino.
The last campaign was one of frustration for the Brazilian, who suffered four separate injury setbacks. He missed the League Cup final through one of them, and was restricted to late cameos from the bench in both the FA Cup and Champions League showpieces.
However, despite making only 17 starts - by far the lowest number in any season since arriving from Hoffenheim back in 2015 - he nevertheless managed 11 goals and five assists, with exactly half of his goal contributions coming as a substitute.
Bench duty may again be Firmino's most likely role this term - which has taken on greater importance with the switch to five substitutions in the Premier League - but the early signs are he has no intention of settling for that.
In both pre-season friendlies in the Far East tour, and the win over Crystal Palace in particular, Firmino appeared sharp, linked well with his fellow forwards, caused problems for the opposition with pressing and dropping in between the lines, and was a goal threat.
Usurped by Diogo Jota and then Sadio Mane as the central striker last term, Firmino now has the sizeable frame of Darwin Nunez to overcome, the Uruguayan having been bought as a number nine in a transfer likely to prompt a shift in attacking emphasis away from the approach that sparked Firmino into life once Klopp was appointed in October 2015.
That, though, may ultimately work in his favour. Nunez will take time to bed in and, with Jota presently hamstrung, the responsibility will fall on the Brazilian to ease any pressure on the new boy. And it could well be that any move towards a 4-2-3-1 formation may see Firmino fit into an attacking midfield role in which he has previously excelled when Mohamed Salah has been the most advanced forward.
And the sense within the squad itself is the 30-year-old can remain a valuable asset.
“Sadio would be a big miss for anybody, he is a world-class player," said Liverpool skipper Jordan Henderson when pondering the new-look forward line. "But you look at the forward line and it’s still very, very strong. We have brought new players in but we also have world-class players who performed last season. Bobby coming back is a big bonus for us, he was injured for a large part of last season. We have plenty of options for sure."
Firmino's contribution during his time at Liverpool - 327 appearances, 98 goals, 67 assists and every major honour, including scoring the goal that made the Reds world champions for the first time - is beyond dispute. And while no sign of a new contract being agreed means the Brazilian could be doing a farewell lap this season, he isn't quite finished yet. Fancy a bit more of Bobby? Si, senor.
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