PERSON@1 `` The Grinder '' PERSON@2 -LRB- October NUMBER@1 , NUMBER@2 -- April NUMBER@3 , NUMBER@4 -RRB- was a heavyweight boxer whose career spanned from NUMBER@5 until NUMBER@6 .

PERSON@3 -LRB- October NUMBER@1 , NUMBER@2 - April NUMBER@3 , NUMBER@4 -RRB- was an MISC@1 boxer .
