Coello/Tapia arrive as the benchmark pair: dominant in serve/return structure, ruthless at net, and especially strong in fast P1 conditions like Valencia where their power and finishing accelerate games. Nieto/Sanz can compete by extending rallies and targeting transitions, but they’ll need near-perfect defense and smarter return patterns to avoid getting pinned and overrun. Prediction: Coello/Tapia in straight sets unless Nieto/Sanz win the first-set momentum battle early.