Just one goal in his first ten top-flight appearances this season had many doubting whether Dominic Calvert-Lewin's best days were over.
Yet, a only four weeks later, he stands as the most discussed forward in England after scoring seven goals in 6 back-to-back games.
His newest finish, in a tie against Sunderland, took his total to eight, establishing him as the top English goalscorer in the Premier League so far this season.
The 28-year-old moved to Leeds United on a Bosman move in the summer, following a nine-year spell with Everton that was marred by fitness issues in its closing stages.
But, the data behind his resurgence in Daniel Farke's new fast-breaking 3-5-2 system are extremely impressive.
His six-game scoring streak puts him in elite company as only the 11th English player to score in six or more successive Premier League matches.
To put that into perspective, even England captain Harry Kane never managed a run lasting this many games - his longest stands at two individual five-match runs.
And the sole English striker to better Calvert-Lewin in the modern era is Jamie Vardy, who embarked on an eight-game scoring spree for Leicester City in 2019.
Why has Calvert-Lewin so difficult to stop in the past month? A previous opponent's manager explained it perfectly.
"He has the perfect timing," the manager stated. "He's intelligent and a genuinely top-class striker and he found the timing to arrive exactly when needed."
That natural ability and timing inside the box was what made him a beloved player at his previous club.
Experts note the tactical shift to a 3-5-2 as a key factor, allowing a greater number of players to get into the box and occupy defenders, thus provided the striker a little more space.
"He is a classic centre-forward," observed a former professional. "For the goal... it was a neat little flick beyond the keeper, a classic centre-forward's goal."
"I've been through a lot since then. Lots of highs and lots of downs. A challenge of resolve and I've persisted and kept going... I've backed myself and here I am now."
His manager has voiced complete confidence at this purple patch, stating again that the player is "among the elite strikers" in the league.
Calvert-Lewin's return to form has inevitably ignited conversations of an England return.
The ex- Sheffield United player has eleven England caps, netting four goals, but has not represented the country since the most recent European Championship.
Observers think the striker will be in contention for the World Cup squad if he can keep up this standard.
"He looks as in shape as he has in a considerable period," one commented. "If he continues this level of form... then he's going to be in a debate for a World Cup place."
But, the battle for places behind Harry Kane is intense.
Ollie Watkins of Aston Villa, following a match-winning brace against Chelsea, is presently regarded as ahead in the pecking order, according to some assessment.
"If you contrast the two players, Watkins possesses the advantage in terms of using his speed to stretch teams," it was noted.
"He also holds the advantage when it comes to making a meaningful impact at a major finals."
Finally, whether Calvert-Lewin makes it to the squad could hinge on how many out-and-out strikers the England manager decides to take.
"I think it might hinge on whether he takes two or three centre-forwards," an analyst concluded. "If it is three, he certainly has a chance."
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