Stupaczuk/Yanguas come in as the higher-ceiling, higher-rhythm pair: faster transitions, heavier left-side pressure, and more reliable defense-to-attack patterns over long exchanges. Esbri/Ruiz can compete if they slow the tempo and make it a physical, lob-and-bandeja match, but Miami’s typically lively conditions favor the team that wins the net first. Prediction: Stupaczuk/Yanguas in 2 tight sets unless Ruiz dominates the net with depth and volleys.