This matchup likely hinges on who controls the left side and the match tempo in Brussels’ typically slower indoor conditions, where defense-to-attack transitions matter. Barrera/Velasco project as the more structured Spanish-style pair (higher volume, better net-building), while Boeykens/Pysson can be dangerous if they speed up rallies early and protect their service games. Slight edge to Barrera/Velasco if they win the left-side battle and avoid cheap errors on deep lobs.