. ▁The ▁mil estone ▁hit ▁was ▁a ▁double ▁off ▁Ben ▁She ets ▁in ▁the ▁fourth ▁in ning ▁versus ▁the ▁Mil w au kee ▁B rew ers . ▁Through ▁that ▁point , ▁Walker ▁was ▁the ▁Rock ies ' ▁career ▁leader ▁in ▁ 1 2 ▁categories . ▁ ▁With ▁the ▁Rock ies ▁struggling ▁to ▁make ▁the ▁play offs — which ▁they ▁had ▁not ▁accomplished ▁since ▁his ▁first ▁year ▁in ▁Colorado ▁in ▁ 1 9 9 5 — W alk er ▁indicated ▁a ▁desire ▁to ▁be ▁trad ed ▁to ▁a ▁cont ender . ▁The ▁Texas ▁R angers ▁agreed ▁to ▁send ▁to ▁the ▁Rock ies ▁two ▁of ▁their ▁prospect s ▁then - min or ▁le ag uer ▁Ian ▁K ins ler ▁and ▁prospect ▁right - hand er ▁Erik ▁Thompson ▁in ▁exchange ▁for ▁Walker ▁in ▁July , ▁but ▁he ▁v eto ed ▁the ▁trade . ▁ ▁St . ▁Louis ▁Card inals ▁World ▁Series ▁appearance ▁( 2 0 0 4 ) ▁On ▁August ▁ 6 , ▁ 2 0 0 4 , ▁Colorado ▁sent ▁Walker , ▁who ▁was ▁batt ing ▁. 3 2 4 ▁in ▁ 3 8 ▁games , ▁to ▁the ▁St . ▁Louis ▁Card inals ▁for ▁minor ▁league ▁pitch er ▁Jason ▁B urch ▁and ▁two ▁players ▁to ▁be ▁named ▁later . ▁On ▁August ▁ 1 1 , ▁those ▁players ▁were ▁identified ▁as ▁Chris ▁Nar ves on ▁and ▁Luis ▁Martínez . ▁ ▁Custom arily ▁the ▁Rock ies ' ▁number ▁three ▁h itter , ▁Walker ▁became ▁the ▁Card inals ' ▁number ▁two ▁h itter . ▁He ▁hit ▁behind ▁a