Australia's greatest ever boxer Jeff Fenech owes his career in large part to a former policeman who took him off the streets and gave him direction - and now he's repaying the favour. Brock Jarvis, whose uncle is former rugby league star Pat, is widely regarded as Australia's most promising young boxer - and has the backing of Fenech to be the country's next world champion. Fenech's lifelong association with the Jarvis family has seen the world class trainer, who coached twice coached former heavyweight champion Mike Tyson, take on a role surpassing that with his 23-year-old protege. Following the wedding of Fenech's son, Brock and his daughter Kayla, 25, revealed their relationship to the fighting legend.