No, The best Boxer of all time is wladimir klitschko
he became a great boxer by training.
John L Sullivan
The great boxer was able to defeat all his opponents in the ring.
Undoubtedly, Manny Pacquiao is the greatest Asian boxer of all-time. He holds more championships in as many divisions (8), which is the most even to non-asian boxers.
there is no great dane but there is a boxer
He was a boxer and did crime during the great depression.
Marmaduke is a Great Dane .
Muhammad Ali has had a great influence on boxing. It could be said that he is the greatest boxer of all time, and likely the most well-known, getting a film made about him, and a great deal of recognition.