Whenever a 18-year-old creates club history in a pivotal Champions League tie against Manchester City, it inevitably draws praise and the spotlight.
During his maiden start in the tournament - and fifth appearance for the club - Thiago Pitarch made a strong impression as the fifteen-time European champions secured a 3-0 round of 16 first leg lead at the Santiago Bernabeu.
The teenager, who also had his Real debut in the qualifying round a month ago with a cameo off the bench at Sporting Lisbon, then assisted the Madrid side overcome the English champions in the midweek second leg to secure a quarter-final place.
At 18 years and 226 days, the midfielder was the club's most youthful starter to begin two matches in the Champions League knockout stages, surpassing Brazil forward Vinicius Jr's previous mark by a week and a half.
This talent is the most recent to come through from the club's academy and is quickly establishing himself as one of the manager's most exciting protegees.
He joined Real from Leganes in 2023, having previously been with Atletico and Getafe's academies, and initially featuring for the under-19 side, where he quickly made a strong impression.
Pitarch worked his way up to the reserve side and it was in a pre-season game in which they faced the academy's first team, then coached by the former defender, 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 describe the moment as "an instant connection," noting Pitarch excelled not only for his technical ability, but for the vitality, character and determination he added to the side.
During the summer of 2025, former boss Xabi Alonso called up Pitarch to train with the senior squad and awarded him playing time during the warm-up matches.
Yet, it was Arbeloa's appointment that proved the turning point in his career as he came on as a second-half replacement in each leg against the Portuguese side that led to the clash with Manchester City.
"I've dreamed of this each night before going to bed, the very first time I started playing the game, each day you go to train and every day you play a match," stated Pitarch following his debut.
"I have just achieved my dream with the best team in the planet and in the best competition."
Handed a first start in La Liga against Getafe - where he was for several seasons after moving from Atleti in 2018 - he has kept his place for the next four as injuries to Jude Bellingham and Dani Ceballos created an opportunity.
Pitarch has seized it with displays that have belied his youth and inexperience.
"He is a very quick footballer, and you can observe his capabilities," said Arbeloa. "He's extremely dynamic, with great endurance, work-rate and mobility."
Pitarch's mentality has also impressed his manager.
"His greatest quality is his character," continued he. "He constantly demands the ball, and even under pressure, he remains unfazed.
"I realize fans might be surprised to watch him start in a European fixture, but he is selected because I had complete confidence in him to perform his normal game.
"Thiago will continue to get opportunities with the first team. It is delightful to coach a talent like him."
Pitarch was born in Fuenlabrada, in the Madrid region, and grew up deeply involved in Spanish football, moving through youth setups before joining the club's famous youth academy.
He holds both Moroccan and Spanish citizenship, giving him the option to represent both nations at senior international level.
Under Fifa eligibility rules, footballers may represent different countries at youth level without being locked in, with the final decision only final once they appear in a official senior international match.
He has featured for Spain at underage levels, turning out for both the U19 and under-20 teams, and participated in the 2025 Youth World Cup, where Spain reached the quarter-finals.
Despite this, he has yet to commit to either full national side, who are monitoring his progress with interest.
In a recent interview, Pitarch confirmed: "I have not taken my final decision so far. My situation is great with the Spanish federation, but I will reach a decision soon."
His situation mirrors that of other dual nationality talents such as club colleague Brahim Diaz and Barcelona forward Lamine Yamal. Whereas 18-year-old Yamal opted for Spain, Diaz opted to play for Morocco.
At present, his attention is on making his mark in the Real side and repaying Arbeloa's faith.
He played over an hour in the two-one victory at City, which sealed a 5-1 overall triumph and a last-eight matchup with Bayern Munich.
His substitution by another academy player in Angel underscored Arbeloa's trust in the next generation to help the club chase future success.
Following his impressive impact to date on European football's biggest stage, the midfielder is tipped to play a key role in that.
"Arbeloa treats me the same. We handle it very normally. I attempt not to overanalyze it excessively - I have to deserve my playing time on the pitch," he commented following the success at Etihad Stadium.
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