Jose Mourinho's long-awaited return to the Santiago Bernabeu proved a memorable occasion as Real Madrid romped to a commanding 4-1 victory over visiting Real Sociedad on Wednesday night, with Kylian Mbappe the star performer in delivering a clinical hat-trick that electrified the home support.

The Portuguese tactician, making his comeback to the storied Madrid stadium, would have cherished the emphatic nature of the result as his charges ultimately dominated proceedings following a nervy opening phase. Mbappe's three-goal haul—struck across both halves with clinical finishing—underscored the French forward's lethal threat in the final third and justified the considerable investment Real Madrid made to secure his services. The performance suggested that Mourinho's blueprint is taking shape at the Bernabeu, despite evident rough edges during the match's opening exchanges.

The contest began with a poignant moment as the crowd acknowledged the World Cup-winning contributions of Marc Cucurella from Real Madrid and Real Sociedad captain Mikel Oyarzabal, a touching tribute that set an absorbing tone for what proved a fiercely competitive encounter. Real Sociedad, however, refused to be intimidated by their illustrious opponents and instead imposed themselves during a first half in which Real Madrid struggled to find their customary rhythm against a well-organised and disciplined visiting defence.

The breakthrough arrived in the 40th minute when playmaking midfielder Fede Valverde spotted Mbappe's darting run into the danger zone. The forward's decisive touch took him past defenders before he unleashed a clinical finish past goalkeeper Alex Remiro, finally giving Mourinho's side the advantage their territorial superiority merited. Yet the relief at the Bernabeu proved premature as Real Sociedad struck back within four minutes through an unlikely source when the home defence faltered catastrophically. Job Ochieng's speculative strike from distance took a significant deflection off a retreating Real Madrid defender, completely wrong-footing goalkeeper Thibaut Courtois and allowing Luka Sucic to pile on the misery by converting the rebound with composed efficiency.

The equaliser represented a jarring moment for the home supporters and threatened to undermine Mourinho's early impression, yet the interval appeared to crystallise the tactical adjustments required. Real Madrid emerged for the second half with considerably sharper intensity, immediately pressing their opponents higher up the pitch and suffocating Real Sociedad's ability to construct attacks from defence. Remiro proved an obstacle to Mbappe's second goal early in the resumption, producing a crucial save to deny what would have been a straightforward finish, while simultaneously denying substitute Cucurella when the Spanish left-back's cross needed clearing.

The deadlock broke decisively in the 63rd minute when Mbappe restored Madrid's advantage following a slick interchange with England international Jude Bellingham. The pair's understanding appeared already well-developed despite limited time together, their combination play releasing Mbappe into space where his composure and technique proved irresistible to any resistance Remiro could muster. Five minutes later, Bellingham again demonstrated his creative prowess by dispossessing Real Sociedad defender Luken Beitia before immediately transferring possession to Vinicius Jr, whose intelligent movement capitalised on the turnover to establish Real Madrid's commanding 3-1 advantage.

Mbappe's completion of his three-goal tally arrived in the 80th minute when Vinicius turned provider, releasing the forward for a straightforward finish that sealed the emphatic triumph and punctuated what had evolved into a dominant second-half performance. The hat-trick represented a significant statement of intent from Mbappe, who appears determined to justify the considerable expectations accompanying his arrival at the Bernabeu by delivering consistent match-winning performances throughout the campaign.

The victory carries particular significance for Mourinho, whose appointment to the Real Madrid dugout continues to generate considerable discourse across European football. His tactical imprint was evident throughout, particularly in the second-half adjustment that suffocated Real Sociedad's attacking ambitions while simultaneously unleashing Real Madrid's superior technical quality in transition. For Malaysian supporters tracking the world's elite football clubs, this dominant display suggests the Portuguese coach's vision is beginning to crystallise into coherent tactical execution, with Mbappe, Bellingham and Vinicius potentially forming a potent attacking triumvirate capable of challenging across multiple fronts this season.