Aguilar Carrillo/Manquillo Alarza look like the pair with a slightly higher ceiling in structured rallies, especially if they can establish a solid left-right balance and own the net phases. Dominguez Gracia/Ortiz Gasco should be competitive if they speed up points and target transitions, but over long exchanges they risk leaking errors. Prediction: Aguilar/Manquillo in a tight two sets or three-set grind, decided by break-point execution.