JK
John Kolosci
Born November 26, 1974 (50 years)
John Kolosci is a retired American mixed martial artist. A professional from 2003 until 2011, he competed for the UFC, Bellator, Strikeforce, the XFC, and was a competitor on The Ultimate Fighter, fighting for Team Serra.
Filmography
| 2005 | The Ultimate Fighter (TV Series) · as Self |