Input (grade 13): Mikkel Kessler (born March 1, 1979) is a Danish professional boxer and former WBA & WBC Super Middleweight champion the latter he won against the previously undefeated Carl Froch on the 24th of April 2010.
Output (grade 12): Kessler defended his title against Danilo Häussler, on October 25, and against Gusmyl Perdomo on 12 September 2009.