During a match against Italy, it looked as if the Uruguayan player head-butted Chiellini.
But he has since been accused of biting after the Italian pulled down his shirt to show deep teeth marks.
If a Fifa investigation proves the bite happened, it will be the third time that Suarez has attacked a fellow player in this way. Last year, he got a taste of Chelsea defender Branislav Ivanovic’s arm.
In November 2010, during a clash between Ajax and PSV Eindhoven players, Suarez bit Feyenoord midfielder Otman Bakkal on the neck.
But he is not the first player to sink his teeth into another opponent. Above is our run down of athletes pictured looking completely harmless – followed by a shot of them appearing to take a bite into their opponents when tournaments get heated.
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies