1. Peter Ganiger (C) assistant coach of Karlsruhe SC tries to stop his team's goalkeeper Markus Miller who lands a punch to his team mate Bradley Carnell (R) after their German first division Bundesliga soccer match against Eintracht Frankfurt in Frankfurt, September 26, 2007.

2. Nikita Cuffe of Australia is poked in the eye by Mercedes Stieber of Hungary (L) as they fight for the ball during their women's preliminary round Group B water polo match at the Beijing 2008 Olympic Games August 13, 2008.

3. Houston Rockets Ron Artest (R) pushes Dallas Mavericks Josh Howard (L) as Mavericks Jason Kidd (C) attempts to break up the fight after Howard fouled Rockets Yao Ming of China in second half NBA action in Dallas, Texas October 30, 2008.

4. Italy's Marco Materazzi falls on the pitch after being head-butted by France's Zinedine Zidane (R) during their World Cup 2006 final soccer match in Berlin July 9, 2006.

5. A linesman tries to break up a fight between BC Lions Tad Crawford (L) and Toronto Argonauts Chris Hardy during first half Canadian Football League play in Vancouver, British Columbia September15, 2007. Both players were ejected from the game.

6. Ottawa Senators winger Chris Neil (25) throws a punch at New Jersey Devils winger David Clarkson as a fan reacts while they fight in the first period of their NHL hockey game in Newark, New Jersey January 4, 2009.

7. Angel Valodia Matos of Cuba kicks referee Chakir Chelbat of Sweden during his men's 80kg bronze medal taekwondo bout against Arman Chilmanov of Kazakhstan at the Beijing 2008 Olympic Games August 23, 2008. Matos was banned for life from taekwondo on Saturday after he kicked Chelbat in the head.

8. New York Yankees' Alex Rodriguez (L) takes a punch from Boston Red Sox catcher Jason Varitek in the third inning at Fenway Park in Boston, Massachusetts July 24, 2004. The fight came after Rodriguez was hit by a pitch from the Red Sox pitcher Bronson Arroyo.Varitek and Rodriguez were ejected from the game.

9. Washington Capitals' Donald Brashear (L) and Ottawa Senators' Chris Neil fight during the second period of their NHL regular season hockey game in Ottawa December 29, 2007.

10. United States' Carlos Bocanegra (C) breaks up a fight between Oguchi Onyewu (R) and China's Shao Jiayi during their international friendly soccer match in San Jose, California June 2, 2007.

11. Umpire Jim Quirk (L) pulls Green Bay Packers linebacker Nick Barnett away from a fight during the fourth quarter of their NFL football game against Chicago Bears at Soldier Field in Chicago December 23, 2007.

12. Ireland's Denis Leamy (L) fights for the ball with Argentina's Felipe Contepomi during their Group D Rugby World Cup match at the Parc des Princes stadium in Paris, September 30, 2007.

13. Chicago White Sox player Brian Anderson (C) and Chicago Cubs player John Mabry fight while White Sox manager Ozzie Guillen (L) and Cubs manager Dusty Baker (R) try to break it up in the second inning of their Interleague baseball game in Chicago May 20, 2006.

14. Phoenix Coyotes Joel Perrault (R) and Oleg Saprykin (L) fight with Edmonton Oilers Raffi Torres (R) and Ladislav Smid (L) as several fights break out at the end of the third period in NHL action in Glendale, Arizona October 26, 2006.