It shouldn’t come as any surprise that every contest on the main card of UFC Mexico City features a fighter of Mexican descent. It shouldn’t come as much of a surprise either that most of them aren’t facing top-flight competition, or at least an opponent that pushes them up the ladder. Like I said in my earlier preview, the UFC has had a hard time getting fighters to visit the high altitude – and dirty air -- of Mexico City. The lone exception: Alexa Grasso hoping for a breakout performance against former titleholder Carla Esparza. Grasso looked fantastic returning from a year layoff to dispatch of Karolina Kowalkiewicz.