This combo of 2 photos shows Italy's defender Giorgio Chiellini (L) showing an apparent bitemark and Uruguay forward Luis Suarez (R) holding his teeth after the incident during the Group D football match between Italy and Uruguay at the Dunas Arena in Natal during the 2014 FIFA World Cup on June 24, 2014. Uruguay won the match 1-0. Uruguay star Luis Suarez faces expulsion from the World Cup for biting another player as FIFA confirmed it had opened disciplinary proceedings against him on on June 25, 2014.  Suarez, banned twice before for biting opponents, appeared to sink his teeth into defender Giorgio Chiellini during Uruguay's 1-0 win over Italy. AFP PHOTO/ YASUYOSHI CHIBA / DANIEL GARCIA        (Photo credit should read DANIEL GARCIA/AFP/Getty Images)