Yellow & Red Cards in the World Cup?

[trt]

How many yellow cards do players have to get before being banned for a future match and what happens if you get a red, is it automatic ban for next game?

[Norberto]

Two yellows for a one match suspension. Red card is at least one match - decided by disciplinary committee.

[lesblue]

As above, but all cards recinded after last 16 matches.