So did Suarez actually bite Chiellini? In case you were still in doubt...
FIFA have released a statement a short while ago on the the disciplinary proceedings against the Uruguayan striker.
FIFA can confirm that disciplinary proceedings have been opened against the player Luis Suarez of Uruguay following an apparent breach of art. 48 and/or art. 57 of the FIFA Disciplinary Code during the 2014 FIFA World Cup Brazil™ match Italy-Uruguay played on 24 June 2014. The player and/or the Uruguayan FA are invited to provide with their position and any documentary evidence they deem relevant until 25 June 2014, 5pm, Brasilia time.
According to art. 77 lit. a of the FIFA Disciplinary Code (FDC), the FIFA Disciplinary Committee is responsible for sanctioning serious infringements which have escaped the match officials’ attention. Furthermore, according to art. 96 of the FDC, any type of proof may be produced (par. 1), in particular are admissible, reports from referees, declarations from the parties and witnesses, material evidence, audio or video recordings (par. 3).
Meanwhile, Suarez himself is pleading innocence.
Hat-tip: Ketil B Stensrud
