| Dennis Olson |
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BORN
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| No data available |
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NICKNAME(S)
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The Menace
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HAS FOUGHT OUT OF
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Lowell, MA
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Data on this site includes fights from: |
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- Bellator
- Cage Warriors (2013+)
- KSW (2012+)
- Strikeforce
- PFL
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- UFC
- WEC (Zuffa-era)
- World Series of Fighting
- select boxing events
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