(CBS Sports/AP) Uruguay beat Italy, 1-0, on Tuesday, advancing to the knockout stage.
But star striker Luis Suarez's World Cup could be over.
Suarez, maybe the best player in Europe last season, appeared to bite Italy defender Giorgio Chiellini in the 80th minute -- one minute before Uruguay defender Diego Godin headed in the match-winner.
Video via CBSSports.com Photos below: Associated Press
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It came at about the 80th minute when Suarez and Italy defender Giorgio Chiellini got tangled up in front of the Italy goal. The apparent chomp happened in an instant, but caught by television cameras, it became a worldwide sensation, and could lead to Suarez being kicked out of the World Cup.
The referee didn't see a bite, and no foul was called despite Chiellini pleading and pulling down his jersey to show a red mark on his left shoulder.
Uruguay will continue playing, but FIFA will investigate and may suspend Suarez, who has twice before been disciplined for biting opponents in league games.
FIFA officially announced an investigation early Wednesday, saying the Uruguayans had until late the next afternoon to present evidence. A ruling will be announced before Uruguay plays Colombia on Saturday.
Suarez didn't confirm or deny the bite, but said he was angry that Chiellini - one of the best defenders in the world and known for his physical play - had hit him in the eye during the game.
"These are things that happen on the pitch, we were both in the area, he thrust his shoulder into me," Suarez said in Spanish. "These things happen on the pitch, and we don't have to give them so much (importance)."
Suarez, 27, should be celebrating a career year. After asking to be sold before the season, he stayed with Liverpool, won the scoring title and was named English Premier League's player of the year.
Now, he'll have to try to start rehabbing his reputation again.
FIFA Vice President Jim Boyle said on British television that Suarez let himself down again.
"There is no doubt Luis Suarez is a fantastic footballer but, once again, his actions have left him open to severe criticism," Boyle, who is also chairman of the FIFA referees' committee, said from his home in Northern Ireland. "FIFA must investigate the incident seriously."
Unfortunately, this isn't the first biting incident for Luis Suarez -- it's his third. He was suspended for seven matches in 2010 for biting PSV's Otman Bakkal on the shoulder, and was banned for 10 matches in 2013 for biting Chelsea's Branislav Ivanovic.This was supposed to be the World Cup where Suarez repaired his reputation. He tried to rebrand himself as a family man after the birth of his two children, a son and daughter.
Suarez said he regretted his previous biting incidents, telling the Mirror newspaper in London recently that he worried what his children will think.
"That thought almost hurts me more than the actual deed. The fact, as well, that I will have to explain one day to my kids that it was me, their father," Suarez said. "That has kept me awake at night many times ... I want to be a father they can be proud of."