Spain arrive as European champions with strong qualifying metrics (2.3 xG created and 0.7 xG conceded per game, W13-D3-L0) and pre‑tournament form of 3 wins, 2 draws, 0 losses, while Cape Verde’s route was built on defensive resilience (just 0.9 goals conceded per match in African qualifying, W6-D4-L2). Spain’s 4‑3‑3/4‑2‑3‑1 possession structure (over 60% average possession, ~600 passes completed in the opener vs Cape Verde) will again face Cape Verde’s compact 4‑4‑2/4‑5‑1 low block that held Spain to 0.0 goals from roughly 1.7–2.0 non‑pen xG in the 0‑0 group match, with Vozinha making multiple saves and Pico Lopes anchoring a back line that allowed only 5 goals in the group. The key attacking matchup is **Lamine Yamal vs Pico Lopes and the right‑side Cape Verde block**: Yamal entered the tournament with double‑digit goal contributions for Spain (circa 5 goals, 7 assists) and generated several shot‑creating actions in the first meeting, but was repeatedly denied by a defense that blocked or saved over 70% of Spain’s shots in that game. In the box, **Ferran Torres and Mikel Oyarzabal (a combined 3 World Cup group‑stage goals and ~1.0 xG per 90 between them) vs veteran keeper Vozinha (two clean sheets in the group, 8+ saves vs Spain)** will likely decide conversion, while for Cape Verde the transition threat of **Jovane Cabral and Garry Rodrigues**—who helped produce 3 group‑stage goals and around 1.2 xG per match, including Kevin Pina’s historic strike vs Uruguay—tests Spain’s rest defense that allowed only 0.5 goals per game but did give up a 2–2 draw to Uruguay in the group. Set pieces and pressing are the swing levers: Spain generated multiple corners and free‑kick deliveries in the 0‑0 but failed to convert despite their edge in aerial xG, whereas Cape Verde scored once from a dead‑ball situation in the group and rarely pressed high (PPDA well above 12) yet forced Spain into 10+ turnovers in their own half, indicating value in selective pressure on Rodri and the first pass out. With no prior head‑to‑head before this World Cup and the market implying roughly a 3:1 Spain win probability vs Cape Verde’s 3%, the data points to **shot quality (Spain’s ability to turn volume into >2.0 xG), Cape Verde’s block rate and goalkeeping save percentage, and the transition‑defense vs counter‑efficiency battle** as the statistically decisive factors in a rematch where Spain are overwhelming favorites but have already seen the underdogs hold them scoreless once.