Former world champion Celestino 'Pelenchín' Caballero (37-5, 24KOs), 38-years-old, is working hard in the gym to shed off nearly a year of ring rust.

After eight months of inactivity in boxing, Caballero will face dangerous Mexican super featherweight contender Adrian 'Dianante' Estrella (18-0, 17KOs) on October 4th  in Monterrey.

Caballero has decided to stay in Panama for training, choosing not to use Jeff Mayweather of Las Vegas for this match.

The WBC FECARBOX  super featherweight title held by Estrella is being contested in the fight.

If Caballero suffers a loss, he admits the future of his career will be jeopardy.