Many would have put a line through David Warner 's name after he punched England rival Joe Root in a Birmingham Bar last year .
The reformed batsman says the regrettable incident has instead been the making of David Warner as a leader .
Many would have put a line through David Warner 's name after he punched England rival Joe Root in a Birmingham Bar last year , but the reformed batsman says the regrettable incident has instead been the making of him as a leader .