FOUR REIGHNING CHAMPIONS WERE KNOCKED OUT IN ROUND ONE.

This is not the first time that a reigning champions were knocked out in their first round.
1938) Reigning champions Italy were knocked out.
1966) Brazil were knocked out that year mainly due to Hungary and attacks on Pele.
2002) France were knocked out in the first round without scoring a single goal
2010) Italy went out in the first round in south Africa.