RIO DE JANEIRO - Luis Suarez was embroiled in another biting controversy on Tuesday when the Uruguay striker appeared to sink his teeth into Italy defender Giorgio Chiellini's shoulder in a crucial World Cup group game.

It is the latest in a long list of contentious moments in the career of the talented but hot-headed forward, who has twice before being punished for biting an opponent in a game and also banned for racist abuse.

Here are five controversies involving the 27-year-old Liverpool player:

Bite No 1

2010 playing for Dutch club Ajax

Suarez was banned for seven matches in 2010 while playing for Dutch club Ajax after TV replays showed him biting PSV Eindhoven midfielder Otman Bakkal in a league match.

The referee missed the incident and Suarez was not punished during the game but Bakkal pulled his shirt down afterward to show a red mark on his shoulder - a similar place to where Suarez appeared to bite Italy's Chiellini at the World Cup on Tuesday.

At the time, Suarez still had a suspended one-match ban hanging over him following a red card in that season's opening game. The incident earned him the nickname "Cannibal of Ajax" in the Netherlands.