▁the ▁doctor ' s ▁advice ▁and ▁fought ▁Bar nett ▁in ▁the ▁final . ▁ ▁After ▁following ▁this ▁up ▁with ▁two ▁more ▁wins , ▁Hoff man ▁was ▁invited ▁to ▁comp ete ▁for ▁the ▁R ING S ▁organization ▁in ▁Japan . ▁ ▁R ING S ▁Hoff man ▁made ▁his ▁R ING S ▁debut , ▁which ▁was ▁also ▁his ▁over se as ▁debut , ▁on ▁February ▁ 2 6 , ▁ 2 0 0 0 ▁in ▁Tokyo , ▁Japan ▁at ▁the ▁R ING S : ▁King ▁of ▁Kings ▁ 1 9 9 9 ▁final . ▁Hoff man ▁faced ▁Georgia ▁Olympic ▁fre est yle ▁wrest ling ▁compet itor , ▁Z aza ▁T kes hel ash v ili , ▁whom ▁Hoff man ▁defeated ▁via ▁knock out ▁only ▁ 3 4 ▁seconds ▁into ▁the ▁fight . ▁After ▁compiling ▁two ▁more ▁wins , ▁Hoff man ▁fought ▁future ▁Dream ▁heavy weight ▁champion , ▁St rike force ▁heavy weight ▁champion , ▁and ▁K - 1 ▁World ▁Grand ▁Prix ▁champion , ▁Al ist air ▁Over e em ▁at ▁R ING S : ▁Mill en ni um ▁Com bine ▁ 2 . ▁Hoff man ▁won ▁via ▁knock out ▁at ▁ 9 : 3 9 ▁of ▁the ▁first ▁round . ▁After ▁winning ▁his ▁next ▁four ▁f ights , ▁two ▁of ▁which ▁in ▁the ▁R ING S ▁organization , ▁Hoff man ▁was ▁invited ▁to ▁comp ete ▁for ▁the ▁U FC . ▁ ▁U FC ▁Hoff man ▁made ▁his ▁U FC ▁debut ▁against ▁former ▁U FC ▁heavy weight ▁champion , ▁Maurice ▁Smith ▁at ▁U FC ▁ 2