Querétaro and León sit nearly tied as frontrunners for most clean sheets in the 2026-27 Liga MX campaign, with Cruz Azul trailing, because the Apertura 2026 season remains early and defensive metrics across mid-table sides remain tightly bunched. Querétaro has bolstered its back line with arrivals including left-back Paulo Victor and defensive reinforcements, while maintaining a goals-against average near one per match. León added center-backs Jhohan Romaña and Juan Guevara to strengthen its organization after recent roster adjustments. Cruz Azul features experienced options such as Willer Ditta and Kevin Mier but has shown more openness in high-scoring fixtures. League-wide, Guadalajara, América, and Toluca lead early clean-sheet counts, yet the long schedule, variable form, and absence of dominant defensive outliers keep implied probabilities clustered among several clubs capable of stringing together shutouts.