When an 18-year-old makes Real Madrid history in a key Champions League tie against City, it naturally attracts praise and the spotlight.
During his first start in the competition - and fifth appearance for the club - Thiago Pitarch made a strong impression as the 15-time Champions League winners secured a three-nil last-16 first-leg lead at the Santiago Bernabeu.
The teenager, who also had his club debut in the play-off round a month ago with a cameo off the bench at Sporting Lisbon, then assisted Los Blancos overcome the English champions in the midweek second leg to confirm a last eight place.
Aged 18 years old, Pitarch became the team's most youthful starter to begin two matches in the Champions League knockout stages, beating star Vini Jr's record by a week and a half.
This talent is the latest to emerge from the famed youth system and is rapidly cementing himself as one of Alvaro Arbeloa's most promising young players.
He signed for Real from Leganes in the summer of 2023, having previously been with Atletico and Getafe's youth teams, and starting out for the under-19 side, where he rapidly created a positive impact.
Pitarch worked his way up to the B team and it was in a friendly match in which they played against the senior squad, then managed by Arbeloa, where the teenager is said to have caught the attention of the present manager, who replaced Xabi Alonso in the new year.
Spanish media would later label the moment as "love at first sight," noting Pitarch stood out not only for his technical ability, but for the vitality, character and drive he brought to the side.
In the pre-season of 2025, ex-manager Xabi Alonso called up Pitarch to practice with the first team and gave him playing time in pre-season.
However, it was the change in manager that proved the defining moment in his career as he was introduced as a second-half replacement in each leg against the Portuguese side that set up the clash with Pep Guardiola's team.
"I've dreamed of this each night when sleeping, the very first time I started playing football, every day you go to train and every day you have a game," said the player after his debut.
"I've just achieved my dream with the greatest club in the world and in the top tournament."
Given a first start in La Liga against his former club - where he was for four years after arriving from Atleti in 2018 - he has retained his place for the next four as fitness issues to Bellingham and Ceballos created an opening.
The teenager has taken it with performances that have belied his youth and experience.
"He's a very quick footballer, and you can observe his capabilities," remarked Arbeloa. "He is incredibly dynamic, with great endurance, effort and movement."
Pitarch's mentality has also stood out to his manager.
"His greatest quality is his character," added Arbeloa. "He constantly demands the ball, and even under pressure, he doesn't feel it.
"I understand fans might be surprised to watch him start in a Champions League match, but he is selected because I had complete confidence in him to do his normal game.
"Thiago will keep receiving chances with the first team. It is delightful to coach a talent like him."
Born in Fuenlabrada, in the Spanish capital's community, and was raised fully immersed in the local game, moving through youth setups before joining Real Madrid's famous La Fabrica system.
He possesses both Moroccan and Spanish nationality, giving him the choice to play for either country at senior international level.
Under Fifa eligibility rules, footballers may appear for different countries at youth level without being locked in, with the final decision only final once they play in a official senior international match.
Pitarch has played for Spain at underage levels, representing both the under-19 and under-20 sides, and took part in the 2025 Youth World Cup, where Spain made it to the last eight.
Despite this, he has yet to commit to any senior national team, who are watching his progress with interest.
Speaking recently, Pitarch said: "I have not taken my final decision so far. Things are positive with the Spanish federation, but I will reach a decision soon."
His situation echoes that of other bi-national talents such as club colleague Brahim Diaz and Barca star Lamine Yamal. Whereas teenage Yamal opted for La Roja, Diaz decided to play for Morocco.
For now, Pitarch's focus is on making his mark in the Real side and rewarding Arbeloa's faith.
He played over an hour in the 2-1 win at the Etihad, which sealed a five-one overall triumph and a last-eight tie with Bayern Munich.
His substitution by fellow youth graduate in Angel underscored Arbeloa's trust in the next generation to aid the team chase trophies to come.
After his notable contributions so far on European football's biggest stage, the midfielder is tipped to play a key role in that.
"The manager treats me the identical way. We handle it very naturally. I attempt not to think about it excessively - I have to deserve my playing time on the pitch," he commented following the success at Etihad Stadium.
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