The forward joined the London club from Belgian side Brugge for £30m in the summer of 2024.
Over halfway through the season, The Bees are in dreamland.
With four wins in their last five outings, and a Samba striker scoring the goals, suddenly supporters find themselves drifting off with thoughts of trips to European capitals next season.
A emphatic three-nil win over the Black Cats moved their manager's side into the fifth spot in the Premier League – a place that was sufficient to secure European football last term.
Only leaders the Gunners have accumulated more points over the past half-dozen matches.
There's a long way to go yet but Brentford are firmly in the race for continental football.
No one was envisioning this last off-season.
Thomas Frank had left for Spurs after a seven-year stint in charge, a period in which he had not only got the club promoted but also established them in the elite division.
Skipper Christian Norgaard left for Arsenal and goal-scoring duo Bryan Mbeumo and Yoane Wissa – who scored a combined of 39 goals in the previous campaign – were out the door, joining United and Newcastle respectively.
Set-piece coach Keith Andrews was promoted to replace Frank, while there was a notable absence of a centre-forward among the off-season arrivals.
A year of struggle, possibly even the drop, was forecast. Yet here we are in the new year with the club in the upper echelons.
So, what is behind their success?
Brentford's decision not to sign another striker was partly down to circumstance, with one forward's move not being finalized until deadline day.
But they also knew they had a £30m striker already waiting to go.
Igor Thiago joined from Club Brugge in the summer for a then club record fee, but was plagued by fitness issues in his first campaign, going goalless in eight appearances.
The 24-year-old has set about making up for lost time this season, though, with his brace against Sunderland taking him to 16 league goals – the most by a Brazilian in a single Premier League campaign.
Considering the fellow Brazilians who have come before him, that is some accomplishment, especially with seventeen matches remaining.
"He has been a revelation," former Liverpool midfielder an analyst said. "He is physically intimidating, fast, powerful, but more skilled than people think. Excellent with his feet, either foot, he can score off both. You can see he's brimming with confidence. These numbers are incredible. He must be so pleased. That's a big compliment to him."
That only a trio of global superstars have scored more in any of Europe's top five leagues to this point shows the standard he is playing at.
And it is not just the quantity but the timing of the goals that have been so pivotal for his team.
His opener against the opposition was his seventh opener of the season. Given how often we are told the significance of the first goal in a game, having someone you can depend on to take that first big chance cannot be underestimated.
Prior to the game against Sunderland, no player to have attempted at least 30 shots this season has a better shooting accuracy than Igor Thiago's 59.1 percent.
He hits the target. Achieve that consistently and the goals will – and have – come.
Considering the struggles he had in his youth, where he worked as a bricklayer to provide for his family following the passing of his father, perhaps it should be no surprise that high-stakes situations on the pitch is something he handles with ease.
"The recruitment team deserve a lot of credit for the kind of players they bring in and characters," Andrews said. "This is really impressive. He is a really special person who has adapted to life very well. He has had to forge this path. He has earned his journey and toiled. He has got real determination about his personality. He is improving his skill set constantly and we are discovering more and more about him. He is a pretty complete centre-forward."
Igor Thiago is the headline act but the team are not and have never been a single-player team.
While they had key individuals – Ivan Toney, Christian Eriksen, Mbeumo and Wissa – under their previous boss, they were always seen as a team more effective than the individual components.
The fear was that once the Dane left, that may not be the case, and that the sum of Brentford's parts alone might not be enough to avoid relegation.
Consequently, appointing Andrews, with a blank managerial CV, and just a twelve months at the club was seen by those external observers as a gamble.
A maiden role is a test for anyone, especially when it comes in the world's toughest league and having made the jump from specialist coach to the manager's office.
But given that Ipswich Town manager one candidate was the only other option that the hierarchy looked at, they were clearly confident they had the correct candidate.
To date, as often seems to be the case with the key decision makers at the club, it looks as if they were spot on.
The new boss won just a single of his first 5 league games in charge but big home victories against United, the Reds and the Magpies have since occurred.
Results that, following their brilliant recent run, could prove increasingly important in the race for European qualification.
"We are in fine fettle and playing really good. We are playing with courage and belief in everything we do with and without the ball," he added. "We are pleased with how we are going but we want to keep improving."
In a league where fourth and 15th are currently separated by just eight points, they have little choice, because things could rapidly look very otherwise.
But, for now, The Bees are defying the predictions. And the longer that lasts, the closer to reality those aspirations of the continent will become.
Lena is an environmental scientist and tech enthusiast passionate about advancing sustainable energy solutions through research and writing.