As shocking as the Netherlands' Day 2 thrashing of Spain was, Day 3 of the 2014 World Cup was even more surprising.
Costa Rica entered with only 241-20 odds to defeat Uruguay according to Odds Shark. Not only did Costa Rica win, it won in style. The massive underdog went into half-time down 1-0, but they stormed back to win 3-0.
According to ESPN Stats & Info, it marked an historic occasion for both teams.
Here are updated group standings and more scores from Day 3.
Costa Rica wasn't the only high-scoring club on Saturday.
Just five minutes into Colombia vs. Greece, Colombia's Pablo Armero scored the first goal of the match to give it a 1-0 lead. The goal would be all Colombia needed, but it offered no mercy.
By the time the referee blew the final whistle, Colombia had routed Greece by the score of 3-0. Teofilo Gutierrez launched another goal past Greece goalie Orestis Karnezis, 58 minutes in, and James Rodriguez, 93 minutes in.
The score could've been uglier, too. Karnezis finished the game with three saves.
Another win like this and Colombia will establish itself as a major threat to Brazil's World Cup title pursuit on its own turf. According to Odds Shark, Colombia entered with 69-2 odds to win it all, just the 10th-highest out of any team.
Italy, which has the seventh-highest odds to win the World Cup, showed why against England.
The score was knotted at 0-0 for the first 35 minutes before Italy's Claudio Marchisio scored a goal to break the tie. Italy didn't hold the lead for long, though. Just two minutes later, Daniel Sturridge sent the score to 1-1 with a goal of his own.
It was the closest World Cup match yet. Italy finished with a slight lead in time of possession, and England finished with a slight lead in shots on goal. But with 50 minutes in, Mario Balotelli scored the game-winning goal off his head.
Italy was already favored to win Group D. After Uruguay's loss earlier in the day, it's an even greater favorite.
Ivory Coast isn't a favorite in its group just yet, but it's definitely now favored to advance. It trailed Japan 48 of the first 64 minutes of the match. Two minutes later, though, Wilfried Bony and Gervinho had Ivory Coast on top.
Ivory Coast didn't dominate like Colombia, but its offense proved it has the quick-strike capability to challenge for the first seed in Group C.
David Daniels is a columnist at Bleacher Report. He tweets, too.