how about these

henry armstrong vs aaron pryor
sugar ray robinson vs thomas hearns
sugar ray robinson vs marvin hagler
roberto duran vs julio cesar chavez
tim witherspoon vs ken norton
jerry quarry vs tommy morrison
joe fraizer vs earnie shavers
joe louis vs larry holmes
michael spinks vs holyfield at cruiserweight or heavyweight u decide
gerald mclellan vs hagler
julian jackson vs nigel benn
julian jackson vs thomas hearns