Tapia/Coello arrive as the higher-ceiling pair: dominant serve+1 patterns, heavier overheads, and superior net control typically decide these matchups. Campagnolo/Bautista can compete by extending rallies and targeting transitions, but in Buenos Aires’ often slower, grippy conditions the favorites’ ability to win the vibora/bandeja exchanges and finish at the net should prevail. Prediction: Tapia/Coello in 2, with a tighter set if the underdogs steal early momentum.