Date of Birth: 
Place of Birth: Warsaw, Masovian Voivodeship, Poland
About Mariusz Fyrstenberg
- Mariusz Fyrstenberg (born 8 July 1980) is a retired left-handed Polish professional tennis player whose speciality was in doubles. Marcin Matkowski and Fyrstenberg qualified as the eighth and final contenders in the 2006 Tennis Masters Cup.
- This was mainly because of their best Grand Slam result, in which they reached the semifinals at the Australian Open.
- In 2011, they reached the US Open men's doubles final and the final of the year-end championships.
- They have participated in the year-end championships six times to date.
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