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CHICAGO- OCTOBER 25: Josh Koscheck (R) punches Thiago Alves in a Welterweight bout at UFC's Ultimate Fight Night at Allstate Arena on October 25, 2008 in Chicago, Illinois. (Photo by Tasos Katopodis/Getty Images)
CHICAGO- OCTOBER 25: Josh Koscheck (R) punches Thiago Alves in a Welterweight bout at UFC's Ultimate Fight Night at Allstate Arena on October 25, 2008 in Chicago, Illinois. (Photo by Tasos Katopodis/Getty Images)Tasos Katopodis/Getty Images

Countdown of The 10 Most Controversial Fighters In UFC History

Eric HoldenDec 9, 2010

This Saturday, Georges St. Pierre will put his UFC Welterweight Championship Belt on the line against Josh Koscheck at the Bell Center in Montreal, Quebec. 

St. Pierre is sure to have the support of his fellow Canadians attending the event, while Koscheck is likely to be roundly booed.  Koscheck has come to be known by UFC fans as a mean-spirited prankster and he has embraced the role of the "bad guy" in the league.

Koscheck knows that controversy sells tickets and Pay-Per-View buys. In honor of UFC 124, here is a look back at the 10 most controversial fighters in the history of the league.

Benches Clear in Tigers-M's ⚔️