The Brazilian Football Federation (CBF) have urged FIFA to apply punitive measures upon Colombia right-back Juan Camilo Zuniga.
Neymar, scorer of four FIFA World Cup goals so far in the tournament, was forced from the field in the closing stages of Friday's 2-1 quater-final win for the hosts after a clumsy challenge from the full-back.
Subsequent scans showed the Barcelona star had suffered a cracked vertebra, ruling him out for the remainder of the competition.
The incident went unpunished by referee Carlos Velasco, much to the chagrin of Brazilian fans who know their side face a semi-final against Germany without the talisman.
And the CBF have thrown their weight behind an attempt to see Zuniga given a retrospective punishment for his part in Neymar's injury.
Their statement read: "The CBF announced that, because of what happened yesterday in the match played between the national teams of Brazil and Colombia, we have requested the FIFA Disciplinary Committee to open a disciplinary procedure to investigate and adjudicate the violent tackle of Colombian soccer player [Juan Zuniga] who hit [Neymar], keeping him out fo the World Cup."
The CBF have also lodged an appeal against Thiago Silva's booking in the game, which sees him suspended for their next phase.
Captain Silva scored Brazil's opening goal against their fellow South Americans, yet was then shown a yellow card for blocking a goal kick from David Ospina.
Aussies Abroad: Borrello fires as Freiburg keep up hot Bundesliga start, Souttar awarded star man honours
Brandon Borrello's Freiburg SC continued their impressive start to the German Bundesliga season with a 3-1 win at newly-promoted Paderborn. The 24-year-old from Adelaide earned his first Caltex Socceroos cap in the June 2019 friendly against Korea Republic and has since broken
Duke named as Western Sydney Wanderers captain
Caltex Socceroo Mitchell Duke has been unveiled as Western Sydney Wanderers' new club captain ahead of their homecoming campaign. The 28-year-old forward was born in Liverpool, only 20km south of Western Sydney's spiritual home in Parramatta, and led out his hometown club on t
Caltex Socceroos defender Jurman departs Al-Ittihad
Caltex Socceroos defender Matthew Jurman is on the lookout for a new club after announcing he has left his Saudi Arabian side Al-Ittihad. Jurman confirmed on social media he is now a "free agent" and thanked the club for allowing him to experience playing in the Saudi Pro Leag
Taggart joins De Bruyne and Ibrahimovic in FIFA 19 TOTW
Adam Taggart has earned a spot in the FIFA 19 Team of the Week after his hat-trick heroics for Suwon Bluewings. The Australian joins Manchester City star Kevin De Bruyne, LA Galaxy striker Zlatan Ibrahimovic and Arsenal midfielder Dani Ceballos in the latest release of 'in for