Alexander Petkovic is a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 professional boxer

Boxing

Boxing, also called pugilism, is a combat sport in which two people fight each other using their fists. Boxing is supervised by a referee over a series of between one to three minute intervals called rounds...

 of Serbian descent.
He's boxed at cruiserweight before making the transition to heavyweight

Heavyweight

Heavyweight is a division, or weight class, in boxing. Fighters who weigh over 200 pounds are considered heavyweights by the major professional boxing organizations: the International Boxing Federation, the World Boxing Association, the World Boxing Council, and the World Boxing...

.

He currently ranks as 15th in Germany in the heavyweight division.

Career

Petkovic made his pro debut in 1997 as a cruiserweight and went undefeated in 31 fights before losing to Johnny Nelson

Johnny Nelson

Ivanson Ranny "Johnny" Nelson is a former professional boxer from Sheffield, England. He was the WBO cruiserweight champion for over six years, having successfully defended the title 13 times. Nelson also held the European and British cruiserweight titles...

 in his challenge for the WBO Cruiserweight title. Since then he's only lost three other fights in the cruiserweight division, including a loss to fellow German Firat Arslan

Firat Arslan

Firat Arslan is a German professional boxer of Turkish descent best known to win a WBA cruiserweight title at the age of 37....

 in a WBO Inter-Continental cruiserweight title fight.

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