Triay/Brea arrive as the more established, physically imposing pair and should control long stretches with heavier bandejas and volley pressure, especially in humid Asunción conditions that reward solidity. Sánchez/Ustero’s ceiling comes from Ari’s tempo control and Ustero’s speed/creativity, but they’ll need to win the transition game and avoid being pinned in the backhand corner. Prediction: Triay/Brea in 2 tight sets, with Sánchez/Ustero threatening if they steal early momentum.