Ron Guerrero (born March 3, 1974) is an American professional boxer who challenged for the WBA Fedecentro Heavyweight Title in 2004, and for the WBF World Heavyweight Title in 2009.
[1][2][3] He sparred with the Klitschko brothers.
He was trained by Tony Ayala, Sr. for his fight against Francois Botha.
[4]