Christina Hammer

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Christina Hammer is a German professional boxer born on 16 August 1990. She has held multiple world championships across two weight classes, including the WBO female middleweight title. Hammer competed under the nickname "Lady" and went eight years undefeated as a world champion. She holds a degree in sports science and works as a speaker. Hammer is also a mother and focuses her public content on mindset, discipline, and health.