Complex sentence: Fernando was in Brazil U- 20's squad at the 2007 South American Youth Championship, which the nation won, but was not included for the subsequent competition in the category, the 2007 FIFA U- 20 World Cup.
Split into simpler sentences: Fernando was in Brazil U- 20's squad at the 2007 South American Youth Championship, which the nation won. He was not included for the subsequent competition in the category, the 2007 FIFA U- 20 World Cup.