The Dublin-born former boxer guided British fighters Johnny Nelson and Naseem Hamed to world titles from his Sheffield-based Wincobank gym. A good, good man has left this earth today," Nelson wrote on Instagram. "A good friend. A good father figure. And the best trainer in the world."Nelson told BBC Sport that Ingle had suffered a brain haemorrhage.BBC boxing analyst Steve Bunce paid tribute to "the Great Whispering Guru"."Brendan Ingle changed the shape and face of British boxing," he said. "The boxing man is dead. Everybody else in the business was in a line behind him the place will not be the same."Ingle was made an MBE in 1998 for his services and contributions to British boxing and his work with young people in the Sheffield area. Having moved to South Yorkshire from Ireland aged 18, he fought as a professional middleweight in his mid-20s, and at his pinnacle was ranked as the number eight fighter in the UK. While living in Wincobank, Ingle was asked by the local vicar to carry out some community work because youths in the area were "running wild".He organised a weekly dance at St Thomas' church hall - which led to the creation of his famous gym."All the nutcases were coming in," he said in 1999. "After the Sunday dance people would turn out on to the street and start fighting down Newman Road."So after 11pm, we'd lock the doors, I'd fetch the gloves out, which thinking about it now was crazy. I would referee. Nobody ever got hurt."Ingle then became a trainer and contributed to the success of former featherweight world champion Hamed and cruiserweight Nelson along with former WBC light-welterweight champion Junior Witter. His sons, Dominic and John, took over the gym when Ingle stood down and continue to train world champions, Kell Brook and Billy Joe Saunders.