Just one goal in his initial ten top-flight games this season had plenty of wondering whether Dominic Calvert-Lewin's best days were in the past.
However, a just four weeks later, he has become the most talked-about attacker in England following netting 7 goals in six back-to-back games.
His newest finish, in a stalemate against Sunderland, brought his tally to eight, seeing him become the top English scorer in the Premier League this term.
The 28-year-old joined Leeds United on a Bosman move in the summer, after a nine-year stint with Everton that was hampered by fitness issues in its latter stages.
Yet, the numbers underpinning his comeback in Daniel Farke's new fast-breaking 3-5-2 system are genuinely remarkable.
His six-match scoring sequence sees him in prestigious company as just the 11th English player to score in six or more consecutive Premier League fixtures.
To provide context, even England captain Harry Kane did not achieve a run this long - his best is two distinct five-match streaks.
And the only English striker to surpass Calvert-Lewin in the modern era is Jamie Vardy, who produced an eight-game scoring streak for Leicester City in 2019.
Why has Calvert-Lewin so hard to stop in the past month? A recent opponent's manager summed it up aptly.
"He has the ideal timing," the manager remarked. "He's intelligent and a really good striker and he found the timing to arrive just on time."
That natural ability and timing inside the box was what established him as a beloved player at his former team.
Analysts highlight the system adjustment to a 3-5-2 as a significant factor, allowing a greater number of players to enter the box and occupy defenders, which has given the striker a little more space.
"He is a classic centre-forward," commented a former professional. "For the goal... it was a lovely little flick beyond the keeper, a typical centre-forward's goal."
"I've been through a lot since then. Lots of highs and lots of lows. A test of character and I've hung in there and kept going... I've believed in myself and this is the result."
His manager has shown little astonishment at this purple patch, reiterating that the player is "a top strikers" in the league.
Calvert-Lewin's resurgence has predictably ignited talks of an England return.
The ex- Sheffield United player has eleven England appearances, netting four goals, but has not played for the country since the last European Championship.
Analysts think the striker will be in the mix for the World Cup squad if he can keep up this standard.
"He looks as sharp as he has in a while," one remarked. "If he sustains this level of form... then he's going to be in a debate for a World Cup place."
Yet, competition for places supporting Harry Kane is fierce.
Ollie Watkins of Aston Villa, fresh off a match-winning brace against Chelsea, is presently regarded as leading in the hierarchy, according to some assessment.
"If you compare the two players, Watkins possesses the edge in terms of using his pace to get behind teams," it was said.
"He also holds the edge when it comes to making a significant impact at a big competition."
Ultimately, whether Calvert-Lewin will be the squad may depend on how many out-and-out strikers the head coach decides to take.
"I think it might depend on whether the manager includes two or three centre-forwards," an expert added. "If it is three, he absolutely has a chance."
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