Why Los Blancos Possess 'Total Trust' in Teenager Pitarch
When an 18-year-old makes Real Madrid history in a pivotal European tie against City, it inevitably draws acclaim and the spotlight.
During his first start in the competition - and fifth game for the club - the young midfielder suitably impressed as the fifteen-time Champions League winners claimed a three-nil last-16 first leg advantage at the Santiago Bernabeu.
The teenager, who also made his club debut in the play-off round a few weeks prior with a cameo off the bench at Sporting Lisbon, then helped the Madrid side overcome the English Premier League side in the midweek second leg to secure a quarter-final place.
Aged 18 years old, the midfielder became the club's youngest player to begin two matches in the Champions League knockout stages, surpassing star Vinicius Jr's previous mark by 10 days.
Rapid Ascent Through La Fabrica
The midfielder is the most recent to come through from the famed youth system and is rapidly cementing himself as one of the manager's most promising young players.
He signed for Madrid from Leganes in the summer of 2023, having previously been with Atletico and Getafe youth teams, and starting out for the Juvenil C team, where he rapidly created a strong impression.
He progressed to the B team and it was during a pre-season game in which they faced the senior squad, then managed by the former defender, where the teenager is said to have drawn the eye of the present manager, who took over from the previous coach in the new year.
Spanish media would later describe the moment as "love at first sight," noting he excelled not only for his skill on the ball, but for the energy, personality and drive he brought to the team.
'His Greatest Quality Remains His Personality'
During the summer of 2025, ex-manager Xabi Alonso called up Pitarch to practice with the first team and gave him playing time in the warm-up matches.
However, it was Arbeloa's appointment that proved the defining moment in his development as he came on as a second-half replacement in both ties against the Portuguese side that led to the meeting with Manchester City.
"I have dreamed of this each night before going to bed, the first day I started playing football, each day you go to train and every day you play a match," stated the player following his debut.
"I've just fulfilled my ambition with the greatest club in the planet and in the top tournament."
Given a starting debut in the Spanish league against his former club - where he was for four years after moving from Atleti in 2018 - he has retained his place for the next four as fitness issues to Jude Bellingham and Dani Ceballos created an opening.
The teenager has taken it with displays that have defied his age and experience.
"He is a extremely fast player, and you can see his capabilities," said the coach. "He is incredibly dynamic, with excellent stamina, work-rate and mobility."
The player's mindset has also stood out to his manager.
"His greatest quality is his personality," added Arbeloa. "He always wants the ball, and even under pressure, he doesn't feel it.
"I understand fans might be astonished to watch him start in a Champions League match, but he is selected because I had complete trust in him to do what he usually does.
"Thiago will keep receiving chances with the main squad. It is delightful to coach a player like him."
A Future International Decision
Born in Fuenlabrada, in the Spanish capital's community, and was raised fully immersed in Spanish football, moving through youth setups before entering Real Madrid's famous La Fabrica system.
He holds dual Spanish and Moroccan nationality, offering him the option to represent both nations at senior international level.
According to international regulations, players may appear for different countries at youth level without being permanently tied, with the final decision only binding once they play in a competitive full international.
He has played for Spain at youth level, turning out for both the under-19 and U20 sides, and took part in the 2025 Fifa Under-20 World Cup, where La Roja reached the last eight.
Nevertheless, he has not yet decided to either full national side, who are watching his progress with keen attention.
In a recent interview, the player confirmed: "I haven't made my final decision so far. Things are positive with Spain, but I will reach a conclusion soon."
This scenario mirrors that of other dual nationality talents such as club colleague Diaz and Barca star Lamine Yamal. While teenage Lamine opted for La Roja, Brahim opted to play for Morocco.
Focus on the Future
At present, Pitarch's focus is on making his mark in the Madrid lineup and repaying his manager's belief.
He featured for over an hour in the 2-1 win at the Etihad, which completed a 5-1 overall triumph and a quarter-final matchup with Bayern Munich.
His substitution by fellow youth graduate in Manuel Angel to emphasise the coach's confidence in the next generation to aid the team chase trophies to come.
After his notable contributions to date on the Champions League, Pitarch is tipped to play a key role in that.
"Arbeloa handles me the identical way. We handle it very naturally. I try not to think about it too much - I have to deserve my playing time on the field," he said following the success at Manchester.