Christina Hammer: Five times world boxing champion Christina Hammer started at age 15 with the sport of boxing. She was trained by Robert Staar. At the age of 16 she was German Junior Champion and soon joined the professional coach Dimitri Kirnos in Dortmund in the professional business.

On 12 September 2009 she started her professional career with a fight against Melisa Koktar. In 2010, she was, at age 20, the youngest WBO world champion, winning against Teresa Perozzi in Riesa. After her WBO title, Hammer won the WBF title on February 18, 2011 against Diana Kiss.

Hammer defended on 27 May 2011 the WBO WBF title against the Swede Maria Lindberg in 10 rounds.

We had the pleasure of interviewing  Christina Hammer at the NY Press Conference for her fight with   Claressa  Shields  for Undisputed Middleweight Belts taking place on Saturday, April 13 Live on SHOWTIME® from Boardwalk Hall in Atlantic City .

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