Ariana Sánchez/Andrea Ustero should control this matchup through higher baseline consistency and better point construction in windy Valencia conditions. Caldera/Goenaga can compete if they speed up rallies and win the first-volley exchanges, but they’ll need sustained pressure on Ustero’s decision-making under load. Prediction: Sánchez/Ustero in 2 sets, with tighter games if Caldera/Goenaga dominate early transitions.