▁reserve ▁to ▁have ▁surg ery ▁on ▁a ▁torn ▁mus cle ▁in ▁his ▁ab d omen . ▁Origin ally ▁expected ▁to ▁miss ▁about ▁six ▁weeks , ▁the ▁pro gn osis ▁changed ▁when ▁it ▁was ▁discovered ▁that ▁he ▁had ▁av asc ular ▁ne c ros is ▁of ▁the ▁hip . ▁In ▁March ▁ 2 0 1 0 , ▁Fly ers ▁general ▁manager ▁Paul ▁Hol m gren ▁announced ▁that ▁Em ery ▁would ▁be ▁out ▁for ▁the ▁remainder ▁of ▁the ▁season ▁due ▁to ▁the ▁diagn osis ▁and ▁that ▁a ▁b one ▁gra ft ▁would ▁be ▁carried ▁out . ▁ ▁Do ctors ▁were ▁able ▁to ▁catch ▁the ▁disease ▁before ▁it ▁spread , ▁unlike ▁the ▁case ▁of ▁baseball ▁and ▁American ▁football ▁player ▁Bo ▁Jackson . ▁As ▁a ▁result , ▁in ▁April , ▁do ctors ▁announced ▁a ▁successful ▁surg ery . ▁Jackson ▁spoke ▁out ▁about ▁Em ery , ▁spec ulating ▁that ▁they ▁were ▁the ▁only ▁two ▁athlet es ▁to ▁come ▁back ▁after ▁the ▁disease . ▁Jackson ▁added , ▁" I ▁take ▁my ▁hat ▁off ▁[ to ▁him ]. ▁I ▁want ▁him ▁to ▁know ▁I ▁am ▁in ▁his ▁corner . ▁It ' s ▁a ▁lot ▁of ▁hard ▁work . ▁To ▁come ▁back ▁and ▁play , ▁it ▁takes ▁a ▁very , ▁very ▁special ▁and ▁driven ▁person . ▁He ' s ▁got ▁a ▁different ▁make up ▁to ▁want ▁to ▁do ▁all ▁the ▁little ▁things ▁he ▁needs ▁to ▁comp ete ▁on ▁a ▁professional ▁level ." ▁Un like ▁Jackson , ▁who ▁required ▁numerous ▁hip ▁rep lac ements , ▁Em ery ▁had ▁the ▁benefit ▁of ▁adv