Cruz Azul's Edgar Mendez celebrates after scoring the second goal their quarterfinal first leg against Queretaro.
MEXICO CITY — Three points on the Liguilla openers in Queretaro and Monterrey:
1. Cruz Azul impresses early; shows no playoff jitters
When Pablo Aguilar slammed in the game's first goal after 16 minutes at the Estadio Corregidora, no Mexican soccer observer would be surprised if a collective sigh came out of the mouths of Cruz Azul fans everywhere. The Paraguay international put his team on course for what ended up being a comfortable away victory that sets the number one seed up for a smooth road…