The forward signed for Brentford from Belgian side Brugge for a club-record fee in July 2024.
Over the midpoint of the season, Brentford find themselves in a dream scenario.
Following victories in their last five outings, and a Brazilian striker scoring the goals, suddenly Bees fans are envisioning thoughts of trips to European capitals next season.
A emphatic 3-0 win over the Black Cats moved Keith Andrews' side into the fifth spot in the Premier League – a place that was sufficient to secure European football last season.
Solely table-toppers Arsenal have accumulated more points over the past half-dozen matches.
There's a significant distance to go yet but the West London outfit are firmly in the fight for European football.
No one was predicting this last off-season.
The former head coach had left for Tottenham after seven years in charge, a period in which he had not only got the club promoted but also established them in the top flight.
Club captain their Danish midfielder left for Arsenal and goal-scoring duo two key forwards – who scored a combined of 39 goals in the previous campaign – were also sold, joining United and Newcastle respectively.
Specialist coach Andrews was promoted to succeed the Dane, while there was no striker among the off-season arrivals.
A year of difficulty, possibly even relegation, was forecast. But here we are in the new year with the club in the upper echelons.
So, what is behind their success?
The club's decision not to sign another striker was partly down to timing, with Wissa's move not being finalized until deadline day.
But they also were aware they had a £30 million striker already ready and waiting.
Igor Thiago joined from Club Brugge in July 2024 for a then-record fee, but was hindered by injury in his first campaign, going goalless in eight appearances.
The 24-year-old has set about compensating for lost time this season, though, with his double against Sunderland taking him to 16 league goals – the highest tally by a player from Brazil in a single Premier League campaign.
Considering the fellow Brazilians who have preceded him, that is a remarkable feat, especially with seventeen matches remaining.
"He has been a revelation," pundit an analyst said. "He is physically intimidating, quick, powerful, but technically better than people think. Good with his feet, either foot, he can score with both. You can see he's full of confidence. His statistics are incredible. He must be so proud. That's a huge compliment to him."
That only a trio of global superstars have scored more in any of the continent's major leagues to this point underscores the standard he is operating at.
And it is not just the volume but the crucial nature of the goals that have been so important for Brentford.
His opener against the Black Cats was his seventh opener of the season. Considering how often we are told the significance of the initial strike in a game, having someone you can depend on to take that early opportunity cannot be overstated.
Prior to the game against their opponents, no player to have attempted at least thirty efforts this season has a better shooting accuracy than Igor Thiago's 59.1%.
He finds the target. Achieve that often enough and the goals will – and have – come.
Considering the struggles he had earlier in life, where he labored in construction to provide for his family following the death of his father, perhaps it should be unsurprising that pressure on the pitch is something he takes in his stride.
"The recruitment team deserve a lot of credit for the type of players they bring in and personalities," the manager said. "It is really impressive. He is a really unique person who has adapted to life very nicely. He has had to earn this path. He has worked for his journey and grafted. He has got real determination about his personality. He is developing his abilities constantly and we are learning more and more about him. He is a pretty all-round 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 concern was that once the Dane left, that may not be the case, and that the collective quality of their parts alone might not be enough to stay up.
As a result, appointing their set-piece coach, with a blank managerial CV, and just a twelve months at the club was seen by those external observers as a gamble.
A first managerial job is a test for anyone, let alone when it comes in the world's toughest league and having made the leap from specialist coach to the top job.
But given that Ipswich Town manager one candidate was the only other option that Brentford 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 Brentford, it looks as if they were spot on.
Andrews won just a single of his first 5 league games in charge but significant home victories against Manchester United, the Reds and the Magpies have followed.
Results that, following their brilliant recent run, could prove increasingly important in the race for European qualification.
"We're in good form and playing really good. We are playing with courage and conviction in everything we do with or without the ball," he added. "We are pleased with how we are going but we want to keep striving."
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, Brentford are defying the predictions. And the longer that lasts, the closer to fruition those dreams of the continent will become.
A seasoned tech writer and software engineer passionate about exploring emerging technologies and sharing knowledge.