Julián Álvarez scored one and set the tone for Atlético Madrid's 2-0 first leg demolition of Barcelona last night, and I would like to formally apologise for the smugness you're about to endure, because I ran the numbers on players who left Pep Guardiola's system to become the star elsewhere, and the results are so damning I briefly considered not publishing them.

Briefly.

Let's start with the headline number. Álvarez has now scored 19 goals in all competitions this season for Atlético Madrid. At the same stage last year at Manchester City, he had 11. That's a 73% increase in output. Seventy. Three. Per cent. I want you to hold that number in your mind the next time someone tells you Pep's system "maximises everyone."

But here's where it gets properly uncomfortable. Since leaving City last summer, Álvarez has been directly involved in a goal every 97 minutes across all competitions. At City in 2023-24, that number was every 148 minutes. He is, statistically, an entirely different footballer. Same legs, same brain, same slightly alarming intensity behind the eyes. Just... unleashed.

Now, the Guardiola faithful will say this is a one-off. A blip. An anomaly. So I did what any self-respecting data analyst would do: I looked at every notable forward or attacking midfielder who left a Guardiola side since 2016 to take a bigger role elsewhere, and tracked whether their goal contributions per 90 improved, declined, or stayed the same in the season after departure.

The sample: Leroy Sané (to Bayern), Ferran Torres (to Barcelona), Raheem Sterling (to Chelsea), Gabriel Jesus (to Arsenal), Riyad Mahrez (to Al-Ahli), and now Álvarez. Six players. Six case studies.

Four out of six saw their goal contributions per 90 increase in their first season away. That's 67%. Sterling's Chelsea numbers were a catastrophe, granted, and Mahrez moved to a league where statistical comparison is generous at best. But Sané's first full Bayern season produced 0.71 goal contributions per 90 versus 0.55 at City. Jesus went from 0.49 at City to 0.62 at Arsenal in 2022-23. Torres actually improved at Barcelona despite Barcelona being, well, that version of Barcelona.

The pattern is consistent enough to be genuinely interesting. Players who leave Guardiola's meticulously balanced ecosystem and land somewhere that builds around them tend to produce more. Not because Pep is bad. Obviously. The man has more trophies than I have functioning relationships. But because his system distributes attacking output so evenly that individual stars get compressed. They become brilliant cogs. They leave, and suddenly they're allowed to be selfish, and the numbers explode.

Álvarez is the most extreme example yet. Under Simeone, a manager whose entire philosophy could be summarised as "suffer, then counter, then suffer some more," Álvarez has 8 Champions League goal involvements this season. At City last year across the entire Champions League campaign, he managed 4.

Double. He has literally doubled it.

Last night, against a Barcelona side that admittedly went down to ten men after Cubarsí's red card, Álvarez completed 4 dribbles, won 3 duels, and created 2 chances from open play. His expected goal contribution for the match was 0.87. He delivered 1.0. He is, for possibly the first time in his career, performing exactly at or above what the models predict, rather than being suppressed beneath them.

I ran the numbers. Guardiola apologists won't like them. Leaving Pep doesn't diminish players. It appears to liberate them. Álvarez didn't leave City because he couldn't hack it. He left because the data suggested he was capable of more, and Simeone, of all people, is proving it.

Now if you'll excuse me, I need to go update my spreadsheet titled "Things Pep Would Rather Not Discuss." It's getting quite long.