From Lionel Messi rolling back the years to full stadiums and a Cape Verde team that shocked Spain, here is what we learned after the first round of games at the World Cup:

Lionel Messi became the first man to play in six World Cup tournaments when he started for Argentina in their opening match against Algeria in Kansas City on Tuesday.

After the upsets and the feel-good stories, the World Cup shifted into a new gear on Tuesday. It could have been billed as Superstar Day. Three of the biggest names in global…