Every "great" trainer has had great wins and bad losses...
Certain trainers and bring out the best in certain styles, there isnt a trainer in the history of the sport imo who could of trained anyone better than the rest...
They all had their styles, they all have their skills. One trainer will train a certain fighter with a certain style better than another but will fail with a different styled fighter...
99% of what fighters do is down to skill... trainers can fine tune certain attributes to make them that little bit better, and certain trainers are special to certain things, from jab, timing to just pure work rate...
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