Just one goal in his opening ten top-flight outings this season had numerous doubting whether Dominic Calvert-Lewin's peak were in the past.
But, a mere four weeks afterwards, he is the hottest forward in England following scoring 7 goals in six consecutive games.
His most recent strike, in a stalemate against Sunderland, elevated his season's haul to eight, seeing him become 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 marred by injuries in its latter stages.
However, the numbers behind his revival in Daniel Farke's new fast-breaking 3-5-2 formation are genuinely impressive.
His six-match scoring run places him in prestigious company as just the 11th English player to score in six or more consecutive Premier League fixtures.
To put that into perspective, even England captain Harry Kane never managed a run lasting this many games - his best remains two distinct five-match runs.
And the sole English striker to surpass Calvert-Lewin in recent years is Jamie Vardy, who embarked on an eight-game scoring spree for Leicester City in 2019.
What has made Calvert-Lewin so difficult to stop in recent weeks? A latest opponent's manager explained it perfectly.
"He has the impeccable timing," the manager stated. "He's smart and a genuinely top-class striker and he found the timing to arrive exactly when needed."
That nose for goal and timing inside the penalty area was what made him a popular figure at his former team.
Analysts highlight the formation change to a 3-5-2 as a major factor, enabling a greater number of players to occupy the box and occupy defenders, thereby created the striker some extra space.
"He is a archetypal centre-forward," noted a former professional. "For the goal... it was a lovely little finish beyond the keeper, a classic centre-forward's goal."
"I've experienced a lot since then. Lots of ups and lots of downs. A test of character and I've persevered and kept going... I've believed in myself and now I'm reaping the rewards."
His manager has shown complete confidence at this rich vein of form, reiterating that the player is "among the elite strikers" in the league.
Calvert-Lewin's resurgence has predictably fueled conversations of an England return.
The former Sheffield United player has 11 England appearances, with four goals, but has not played for the country since the previous European Championship.
Pundits believe the striker will be in consideration for the World Cup squad if he can keep up this standard.
"He looks as fit as he has in a considerable period," one remarked. "If he sustains this level of form... then he's going to be in a conversation for a World Cup place."
However, the battle for places behind Harry Kane is intense.
Ollie Watkins of Aston Villa, fresh off a match-winning brace against Chelsea, is right now considered to be ahead in the hierarchy, according to some opinion.
"If you look at the two players, Watkins possesses the edge in terms of using his speed to get behind teams," it was said.
"He also has the advantage when it comes to making a significant impact at a big competition."
In the end, whether Calvert-Lewin is part of the squad could hinge on how many specialist strikers the national team coach decides to take.
"I think it might depend on whether the manager selects two or three centre-forwards," an pundit summarized. "If it is three, he absolutely has a chance."