In his prime , he was arguably the best fighter on the planet and unarguably one of the most dominant and exciting champions of all time .
Perhaps the saddest name on this list is Roy Jones Jr .
In Roy Jones Jr 's prime , Roy Jones Jr was arguably the Roy Jones Jr fighter on the planet and unarguably one of the most dominant and exciting champions of all time .
Perhaps the saddest name on this list is Roy Jones Jr .