Liverpool striker Luis Suarez is in risk of losing a personal sponsorship deal.
Suarez, twice convicted of biting earlier in his career, on Tuesday night appeared to bite Italy defender Giorgio Chiellini during Uruguay's defeat of Italy and faces a lengthy ban.
Poker brand 888 said it was reviewing its sponsorship deal with Suarez.
"Following the allegations made against Luis Suarez in regards to his behaviour during Uruguay's World Cup match against Italy, 888poker is seriously reviewing its relationship with the player as we will not tolerate any unsporting behaviour," 888poker said in a statement on Wednesday.
