how do they pick the confederations cup teams
2017 FIFA Confederations Cup The eight competing teams were the host nation, the reigning FIFA World Cup champions, and the six holders of the FIFA confederation championships. If any team qualified for multiple berths (such as, if the World Cup champions also won their continental championship), the next best-placed team from their continental championship would have qualified.
FIFA World Cup Each group plays a round-robin tournament, in which each team is scheduled for three matches against other teams in the same group. This means that a total of six matches are played within a group. The last round of matches of each group is scheduled at the same time to preserve fairness among all four teams.[57] The top two teams from each group advance to the knockout stage. Points are used to rank the teams within a group. Since 1994, three points have been awarded for a win, one for a draw and none for a loss (before, winners received two points).