Castelló/Rufo enter as the more established pair and should control match tempo with heavier bandeja/víbora and better transition management. Phillips/De La Mare can stay close if they win the serve-plus-1 exchanges and keep points short, but over a full match the Spanish pair’s consistency in the mid-court typically prevails. Prediction: Castelló/Rufo in 2 sets, with a possible tight first set if the underdogs start fast.