Spain's record six consecutive World Cup clean sheets and midfield dominance through Rodri and Pedri give them control of tempo and territory, while Belgium's loss of Amadou Onana leaves them without their best tool to disrupt that control. Belgium's transition threat via De Bruyne and Doku is real but will be blunted by Spain's organized high line and Unai Simón's outstanding form. Spain have been clinically efficient in knockout play, grinding out 1-0 wins against Uruguay and Portugal that fit this expected pattern. Belgium's back line is vulnerable to Spain's wide outlets, and the head-to-head history heavily favors La Roja. The indoor venue and comparable rest neutralize external variables, making quality and defensive solidity the decisive factors. If level after 90 minutes, Spain's superior depth and possession discipline make them the likelier side to prevail in extra time or penalties.

Spain enters this quarter-final with an astonishing defensive record, having kept five consecutive clean sheets and not conceded in over 600 minutes of World Cup football. Their midfield duo of Rodri and Pedri should dominate possession, especially since Belgium is missing their primary midfield enforcer, Amadou Onana, to an ACL injury. While Belgium possesses dangerous vertical threats in Doku and De Bruyne that could exploit Spain's high line, the absence of Onana severely weakens their ability to sustain pressure or disrupt Spain's rhythm. Spain's tactical discipline and immense confidence make them the clear favorites to control the tempo and limit Belgium's counter-attacking opportunities. Furthermore, Spain's late update confirms a fully fit starting XI, whereas Belgium's defense has shown vulnerabilities by conceding five times in the tournament. Ultimately, Spain's impenetrable defense and superior squad depth should see them through, likely in regular time, but certainly over 120 minutes if required.

Spain arrive as the stronger, more balanced side: six consecutive clean sheets, a record scoreless streak and an elite spine of Rodri, Pedri, Cubarsi-Laporte and Simon. Their tight, low-scoring wins (four 1-0/3-0 style results) point to a controlling, grinding style that tends to smother transition-based opponents. Belgium are in excellent form and dangerous on the counter through Doku, De Bruyne and De Ketelaere, but losing Onana significantly weakens their ability to disrupt Spain's midfield control and shield their back line against sustained pressure. Belgium's defensive record this tournament (5 conceded, two 0-0s aside) is far shakier than Spain's, and their attack has thrived mostly against weaker or open opponents. Spain's possession dominance should limit Belgium's transition volume, and their attacking edge via Yamal and set pieces makes a narrow home win the most likely path. Given Spain's habit of tight results, a low-scoring 1-0 is the single most probable scoreline, with a real chance of a stalemate. If it goes to extra time and penalties Spain remain marginal favorites given depth and quality, though Courtois is a strong shootout asset for Belgium; I still lean Spain to progress.

Spain’s historic defensive run (five straight clean sheets, 609 minutes without conceding) and possession-based control give them a clear edge, especially against a Belgium side missing their primary midfield enforcer Onana. Belgium’s counter-attacking weapons (Doku, De Bruyne) are dangerous but have been largely neutralized by Spain’s structure and Rodri’s shielding. Spain’s recent knockout wins have been tight (1-0 vs Portugal, 1-0 vs Uruguay), and their attack is efficient rather than explosive, making a low-scoring home win the most probable outcome. Belgium’s underdog spirit and unbeaten run under Garcia keep the draw and a smash-and-grab away win as live possibilities, but the weight of evidence tilts firmly toward Spain in 90 minutes and even more so if the match extends, given their defensive resilience and composure.

Spain are the clearer 90-minute favorite because their tournament profile is exceptionally stable: heavy midfield control, five straight clean sheets, and no major new absences. Belgium are dangerous enough to keep this from being one-sided, with De Bruyne, Doku, Trossard and Lukaku giving them transition and late-game threat, but Onana's ACL injury weakens the area where they most need resistance against Rodri, Pedri and Olmo. The venue and rest do not create a meaningful levelling factor, so the forecast mainly comes down to Spain's structure versus Belgium's counterattacking efficiency. Belgium's recent scoring run raises their chance of breaking Spain's streak, but Spain are still more likely to limit shot volume and territory. A tight Spain win is more likely than a comfortable one, with 1-0 the single most likely scoreline. If the match is level after 90 minutes, Spain's overall control and bench options still make them the better advancement call, though Courtois keeps Belgium live in extra time or penalties.

Spain enter as clear favorites: 35 matches unbeaten in normal time, a record six consecutive World Cup clean sheets, and a fully fit squad with Nico Williams available from the bench. Their 4-2-3-1 with Rodri-Pedri controlling midfield has systematically suffocated opponents, and the absence of Amadou Onana — Belgium's primary midfield disruptor — removes the one player best equipped to break Spain's rhythm. Belgium's attacking form (12 goals in three games) is real but inflated by weaker opposition (New Zealand, Senegal, USA); against a Spain back line that has not conceded in over 600 minutes, their vertical-transition game will find far less space. De Bruyne's likely recall and Lukaku/Doku off the bench give Belgium a puncher's chance, but their reliance on counters against a high, well-drilled Spanish line is a thin margin. The pattern of Spain's knockout wins (1-0 vs Uruguay, 1-0 vs Portugal) suggests another narrow victory is the modal outcome. Even if forced to extra time or penalties, Spain's quality and depth make them the clear side to progress.