Derek Walker ( American football ) Derek Raynal Walker ( born September 16 , 1986 ) is an American football defensive end who is currently a member of the Chicago Rush of the Arena Football League . He was signed by the Washington Redskins as an undrafted free agent in 2009 . He played college football at Illinois . Walker has also been a member of the Seattle Seahawks , San Francisco 49ers and Chicago Bears . Early years . Walker attended Glenbard East High School in Lombard , Illinois , where he was honorable mention All - State . He was named the team ' s Most Valuable Player in football , track and basketball , adding All - Conference gridiron honors as a senior . He was chosen to the All - Area football and basketball squad by the Arlington Heights Daily Herald . He recorded 125 tackles , 11 sacks , 30 hurries , two forced fumbles and deflected two passes as a senior , garnering Super Prep and Prep Star All - Region accolades . In track , he was a two - time All - Conference selection in the discus and was named to the All - Conference team in basketball . College career . Walker was a Second - team All - Big Ten Conference selection by The NFL Draft Report and Athlon Sports Magazine . Walker started 11 - of - 12 games for the Illini , seeing action at both defensive end positions and also competed at right defensive tackle ( lined up mostly at left end ) and recorded 33 tackles ( 19 solos ) , six sacks , seven stops for losses and credited with nine quarterback pressures . He also recovered two fumbles and blocked a field goal and returned an interception 34 yards for a touchdown . In 2007 Walker played in twelve games , starting the first eight contests at left defensive end before suffering a left ankle sprain . He returned for the final four games , but was relegated to reserve duty , as his injury was slow to heal . He finished with 22 tackles ( 12 solos ) , 2 . 5 sacks , 3 . 5 stops for losses and nine quarterback pressures , a Recovered fumble and deflected two passes . The previous season , 2006 , he was a Second - team All - Big Ten Conference selection by The NFL Draft Report . He was named team Defensive Lineman of the Year started all twelve games at left defensive end and recorded a career - high 29 tackles ( 12 solos ) with 5 . 5 sacks , eight stops for losses and 12 quarterback pressures and two deflected passes . Walker was a Freshman All - American selection by The Sporting News As a freshman starter Walker made 26 tackles ( 15 solos ) with a sack , six stops for losses and three quarter - back pressures a deflected pass . The 2004 season he red - shirted in his first year at Illinois , joining the program as a 245 - pound defensive end . Professional career . Washington Redskins . Walker was signed by the Washington Redskins as an undrafted free agent in 2009 . He was cut by Washington in July . Seattle Seahawks . Walker then signed as a free agent with the Seahawks on July 29 , 2009 . He was waived after one game on September 14 . He was re - signed to the practice squad the next day . The Seahawks promoted Walker to the active roster on November 10 , but he did not appear in a game with the team before being waived on December 26 to make room for wide receiver Mike Hass . San Francisco 49ers . Walker was claimed off waivers by the San Francisco 49ers on December 28 . Chicago Bears . Walker was signed as a free agent by the Chicago Bears on August 7 . On August 25 , the Bears waived Walker .