Salazar/Alonso enter as the more structured pair: Salazar’s experience in managing tempo and defensive transitions should stabilize Alonso’s aggression. Caldera/Goenaga can disrupt with pace and first-volley pressure, but over longer rallies they’re likelier to leak errors if pushed off the net. Slight edge to Salazar/Alonso, especially if they control lobs and win the middle at the net.