Just one goal in his initial ten English top division appearances this campaign had numerous doubting if Dominic Calvert-Lewin's prime were over.
However, a mere four weeks afterwards, he has become the most discussed forward in England following bagging seven goals in 6 consecutive games.
His latest goal, in a tie against Sunderland, brought his tally to eight, establishing him as the highest English goalscorer in the Premier League so far this season.
The 28-year-old joined Leeds United on a free transfer in the summer, after a nine-year period with Everton that was blighted by fitness issues in its closing stages.
Yet, the data supporting his comeback in Daniel Farke's new counter-attacking 3-5-2 setup are genuinely impressive.
His six-game scoring sequence sees him in elite company as only the 11th English player to score in six or more consecutive Premier League fixtures.
To put that into perspective, even England captain Harry Kane was unable to produce a run lasting this many games - his best remains two separate five-match streaks.
And the only English striker to better Calvert-Lewin in recent memory is Jamie Vardy, who produced an eight-game scoring streak for Leicester City in 2019.
What has made Calvert-Lewin so hard to stop in recent weeks? A latest opponent's manager summed it up succinctly.
"He has the perfect timing," the manager stated. "He's intelligent and a really good striker and he found the timing to arrive at the perfect moment."
That nose for goal and timing inside the box was what established him as a beloved player at his previous club.
Analysts highlight the system adjustment to a 3-5-2 as a significant factor, enabling a greater number of players to occupy the box and occupy defenders, thus provided the striker some extra space.
"He is a archetypal centre-forward," observed a former professional. "For the goal... it was a lovely 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 lows. A challenge of resolve and I've persevered and kept going... I've backed myself and here I am now."
His manager has expressed little astonishment at this rich vein of form, stating again that the player is "a top strikers" in the division.
Calvert-Lewin's scoring run has naturally sparked conversations of an England return.
The former Sheffield United player has 11 England appearances, netting four goals, but has not represented the Three Lions since the last European Championship.
Observers believe the striker will be in the mix for the World Cup squad if he can maintain this level.
"He looks as sharp as he has in a considerable period," one remarked. "If he continues this level of form... then he's going to be in a conversation for a World Cup place."
Yet, the battle for places supporting Harry Kane is intense.
Ollie Watkins of Aston Villa, coming off a decisive double versus Chelsea, is currently considered to be in front in the pecking order, according to some analysis.
"If you look at the two players, Watkins possesses the edge in terms of using his pace to stretch teams," it was said.
"He also possesses the advantage when it comes to making a significant impact at a major finals."
Finally, whether Calvert-Lewin makes it to the squad could hinge on how many out-and-out strikers the national team coach decides to include.
"I think it might hinge on whether the manager selects two or three centre-forwards," an analyst added. "If it is three, he certainly has a chance."
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