Daniel Vallejo of Paraguay enters the Valencia quarter-finals as the 84th-ranked player, seeking to build on recent wins against Grigor Dimitrov and Lorenzo Tien. The Paraguayan has shown mixed form with two losses to Federico Cobolli and Juan Faria sandwiched between victories, arriving at this clay-court stage with momentum from back-to-back wins. Vallejo faces no prior head-to-head history against Zizou Bergs, making this a fresh matchup. At Pinnacle, Vallejo is offered at 1.81 decimal odds as the home favorite.

Zizou Bergs of Belgium arrives in Valencia as the 39th-ranked player and higher seed in this quarter-final encounter on clay. The Belgian has won three of his last five matches, including victories over Romain Hijikata and Pierre-Hugues Herbert, though recent losses to Thanasi Atmane and Alejandro Tabilo show inconsistent form entering the knockout stage. Bergs carries no previous head-to-head record against Vallejo in this first meeting. Pinnacle offers Bergs at 2.09 decimal odds as the away underdog.