▁teams ▁fe ared ▁he ▁was ▁too ▁short ▁( six ▁feet ) ▁to ▁play ▁line back er , ▁and ▁too ▁light ▁( 2 4 0 ▁pounds ) ▁to ▁play ▁on ▁the ▁def ensive ▁line . ▁A ▁few ▁teams ▁did ▁send ▁him ▁training ▁camp ▁inv ites . ▁The ▁Ste el ers ▁signed ▁Harrison ▁as ▁an ▁und raft ed ▁ro ok ie ▁in ▁ 2 0 0 2 , ▁making ▁him ▁the ▁first ▁Kent ▁State ▁al umn us ▁to ▁play ▁at ▁line back er ▁for ▁the ▁team ▁since ▁Hall ▁of ▁F amer ▁Jack ▁Lam bert . ▁ ▁Harrison ▁spent ▁two ▁years ▁on ▁and ▁off ▁the ▁practice ▁squad ▁for ▁the ▁Ste el ers , ▁being ▁released ▁three ▁times , ▁and ▁also ▁was ▁briefly ▁on ▁the ▁active ▁ro ster ▁towards ▁the ▁end ▁of ▁the ▁ 2 0 0 2 ▁season , ▁playing ▁only ▁special ▁teams . ▁Te amm ate ▁and ▁fellow ▁line back er , ▁James ▁Far rior , ▁later ▁told ▁NFL ▁Network ▁that ▁Harrison ▁was ▁so ▁green ▁early ▁on ▁in ▁his ▁career ▁that ▁he ▁would ▁simply ▁" g ive ▁up " ▁on ▁plays ▁on ▁which ▁he ▁was ▁struggling ▁and ▁even ▁would ▁ask ▁the ▁coach es ▁not ▁to ▁play ▁him ▁when ▁he ▁was ▁struggling . ▁Far rior ▁said , ▁" He ▁was ▁a ▁kn uck le head ▁that ▁didn ' t ▁know ▁the ▁plays . ▁We ' d ▁be ▁in ▁practice , ▁in ▁training ▁camp , ▁and ▁he ▁might ▁not ▁know ▁what ▁he ▁was ▁doing ▁so ▁he ' d ▁just ▁stop ▁and ▁throw ▁his ▁hands ▁up ▁and ▁tell