Ticketmaster MX still doesn't list those matches (http://www.ticketmaster.com.mx/Esta...venue/163913?tm_link=venue_artistvenue_module). They should show up there very soon. Absolute confirmation of the venue with an exact kickoff time (7:30 PM) here: https://miseleccion.mx/ I was going to call my contact at Soccer House about the USSF membership ticketing procedure, but Wixson's comment on the USSSC thread makes me think that would be a waste of time today. I'd guess there will be a general Ticketmaster on sale early next week (Monday or Tuesday). It will probably be cheaper, but more of a hassle, to buy from Ticketmaster with the need to pick up tickets at a retail outlet or at the stadium. I arrive in DF on Sunday morning, so I sense a possible early arrival at Estadio Azteca to collect tickets at Will Call in my future. "Will Call La entrega de will call en el Estadio Azteca es en las Taquillas de Tlalpan únicamente tres horas antes del evento" US Soccer has enough information to include tickets as part as the all-inclusive luxury packages, but leaves the rest of us guessing.