Keston Gun Club Sports club. Please use the contact details below to register your interest in Private Training. He was close with his younger brother Mario 'Vinnie' Costello, a noted professional boxer super featherweight boxer from with a pro record of but who never fought for a title, who trained with his brother  under the late Victor Vallee,  who also trained Gerry Cooney. Every class is different, fun, challenging and a great workout. Sections of this page.