Soccer is referred to affectionately by millions all over the world as "the beautiful game." But over the course of its history, it has shown a dark side as well.
Many of the world's biggest football clubs are known to have fan bases packed with thugs and hooligans, and these fan bases have brought about terrible moments in the history of the game.
Earlier this year in February, for example, we had the Egypt soccer riots which killed over 70 people, and when Tottenham visited Lazio in the Europa League this season, many Spurs fans were brutally attacked by the Italian club's Ultras.
But just as the game can get ugly off the pitch, it can get ugly on the pitch as well.
Many of the world's highest profile players have made a name for themselves by beingLazio physical beyond what is deemed necessary—in the modern game, think Pepe, Joey Barton, Nigel De Jong, just to name a few.
Today, we'll be running through 10 of the most violent on-pitch incidents ever, ranked on the basis of intent, level of violence, level of damage caused, and uncommonness compared with the nature of the game at that time.