Martinez/Lujan project as the more “built” pair: clearer right-left balance, steadier volley structure, and a higher floor in long rallies typical of FIP Silver main draws. Collombon/Sharifova can swing the match with faster transitions and aggression, but their margin shrinks if they get pinned in the backhand corners under Oeiras’ often breezy coastal conditions. Slight edge to Martinez/Lujan in two tight sets if they keep the net and manage lobs.