Landon Donovan (USA)
We have to start with Donovan. The 32-year old was shockingly left off of the final roster for the World Cup and his absence immediately sparked an outrage from a majority of the public.
Not only does Donovan have more international experience than the rest of the selected squad, but he's scored more goals (57) than any other American too. Should the USA fail to make it out of group play, a lot of questions will be asked of Jurgen Klinsmann.
Carlos Tevez (Argentina)
It's not like Tevez, the former Manchester City striker who now plies his trade with Juventus, had a poor campaign in Italy. Quite the contrary. He had 19 goals and seven assists in 30 Serie A appearances, but it still wasn't enough for Argentina boss Alejandro Sabella.
You've only got to look at the rest of the forwards on the roster to see why Tevez wasn't selected: Messi, Sergio Aguero, Gonzalo Higuain, Ezezuiel Lavezzi and Rodrigo Palacio.
Samir Nasri (France)
From reports, it seems Nasri only has himself to blame for missing out on a trip to Brazil.
The creative playmaker had an excellent season for Manchester City's title-winning side, but he's been known to create trouble in the French national team camp. Opting for harmony over quality, Didier Deschamps had no qualms about leaving out the 26-year old, who has 41 career international appearances to his name.
This one wasn't a huge surprise. Kaka is far from the player he once used to be and is coming off a seven-goal haul in 30 league appearances for AC Milan in 2013/14.
Injuries have hurt Kaka's cause over his career and with so many other attacking options at his disposal, it wasn't shocking to see Luiz Felipe Scolari leave the former world class attacker out of the squad. Brazil enters the World Cup as the top overall soccer betting favorite.
Alvaro Arbeloa (Spain)
Arbeloa was an integral part of Spain's 2008 and 2012 Euro titles and 2010 World Cup crown as well, yet he finds himself on the outside looking in heading into the 2014 World Cup.
With so many other quality defenders on the squad, including the likes of Gerard Pique, Sergio Roms, Jordi Alba, Cesar Azpilicueta, Javi Martinez and Daniel Carvajal, Arbeloa was deemed surplus to requirements for the ultra-talented Spaniard outfit.
Though Coutinho is much younger and has a bright future ahead of him, unlike Kaka, he still was left off the Brazilian squad because of the sheer amount of talented midfielders available to Scolari.
It was a dream domestic season for Coutinho and his Liverpool side, but the the 21-year old will have to bide his time before he can make an impact internationally. Assuming he continues to grow and improve, the creative little maestro should make the cut in Euro 2016.
Ashley Cole (England)
We close out with the England squad. Once considered world class at the left back position, Cole fell out of favor for Jose Mourinho's Chelsea team and never really made an impact, which proved to be a killer blow to his international aspirations.
After failing to make the squad, Cole immediately announced his retirement from international play, ending an era of defensive stoutness which also featured stalwarts John Terry and Rio Ferdinand.
Other Notable Snubs: Ronaldinho, Diego Lopez, Gregory van der Weil, Dani Osvaldo, Gael Clichy