Talaván/Saiz arrive as a more established pair with clearer left-right roles, while Montes/Collombon have the higher ceiling if they dictate with pace and first-strike volleying. In Asunción’s typically lively conditions, quick points and serve/return quality should outweigh long defensive exchanges. Slight edge to Talaván/Saiz for structure and consistency, but it’s tight if Collombon controls the net.