2 ▁Dol ph ins ▁and ▁ 2 0 0 7 ▁Patri ots , ▁the ▁only ▁other ▁team ▁to ▁ever ▁complete ▁the ▁regular ▁season ▁und efe ated ▁and ▁un t ied ▁is ▁the ▁Chicago ▁B ears , ▁who ▁accomplished ▁the ▁fe at ▁in ▁both ▁ 1 9 3 4 ▁and ▁ 1 9 4 2 . ▁Both ▁of ▁those ▁B ears ' ▁teams ▁however ▁failed ▁to ▁win ▁the ▁NFL ▁Championship ▁Game . ▁ ▁During ▁the ▁ 1 9 7 2 ▁season , ▁Bob ▁G ri ese ’ s ▁an k le ▁was ▁broken ▁in ▁Week ▁ 5 ▁as ▁he ▁was ▁s ack ed ▁by ▁San ▁Diego ▁Ch arg ers ▁def ensive ▁tack le ▁Ron ▁East ▁and ▁def ensive ▁end ▁De acon ▁Jones . ▁He ▁was ▁replaced ▁by ▁veter an ▁Earl ▁Mor r all ▁for ▁the ▁rest ▁of ▁the ▁regular ▁season . ▁G ri ese ▁returned ▁to ▁the ▁field ▁as ▁a ▁substitute ▁in ▁the ▁final ▁regular ▁season ▁game ▁against ▁the ▁Baltimore ▁Col ts ▁and ▁then ▁also ▁rel ieved ▁Mor r all ▁for ▁the ▁second ▁half ▁of ▁the ▁A FC ▁Championship ▁game ▁versus ▁the ▁Pitts burgh ▁Ste el ers ▁and ▁then ▁started ▁for ▁Miami ▁in ▁Super ▁Bowl ▁VII . ▁On ▁the ▁ground , ▁running ▁back s ▁Larry ▁C son ka ▁and ▁Mercur y ▁Morris ▁became ▁the ▁first ▁team m ates ▁to ▁each ▁r ush ▁for ▁ 1 , 0 0 0 ▁yards ▁in ▁a ▁season . ▁Paul ▁War field ▁led ▁the ▁rece ivers , ▁aver aging ▁over ▁ 2 0 ▁yards ▁per ▁catch ▁on ▁ 2