BBC Sport - World Cup 2014: Question marks over Brazil says BBC's Tim Vickery
Question marks over Brazil - Vickery
- From the section 2014 Fifa World Cup
Vickery also believes that Mexico have gained a great deal of "self-respect" after shutting out the hosts in Fortaleza.
Brazil are top of Group A ahead of Mexico on goal difference - with both unbeaten teams on four points after their first two matches.