They run, they throw, they catch, they score.
What else do they do? They fight! Check out these sports celebrity feuds...
Muhammad Ali vs Joe Frazier
PJ Carlesimo vs Latrell Sprewell
Roger Clemens vs Mike Piazza
Mike Tyson vs Lennox Lewis
Tonya Harding vs Nancy Kerrigan
Bob Clarke vs Eric Lindros
Shaquille O'Neal vs Kobe Bryant
Kobe Bryant vs Karl Malone
Donovan McNabb vs Terrell Owens
Colorado Avalanche vs Detroit Red Wings
Zidane vs Materazzi
Ken Shamrock vs Tito Ortiz
Pete Rose vs Bud Selig
Muhammad Ali vs George Foreman
Billy Martin vs Reggie Jackson
Reggie Miller vs Spike Lee
Bill Romanowski vs Marcus Williams
Don Sutton vs Steve Garvey
Mark Cuban vs David Stern

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