John DiGiorgio John DiGiorgio ( born June 29 , 1982 in Shelby Charter Township , Michigan ) is a retired American football linebacker . He was signed by the Buffalo Bills as an undrafted free agent in 2006 . He played college football at Saginaw Valley State . Professional career . Buffalo Bills . DiGiorgio was signed by the Bills as an undrafted free agent in 2006 . That year he was the only undrafted free agent to make the Bills ' 53 - man roster . He overcame a lot of adversity , and added depth to a ( during the time ) weak defense . As a rookie in 2006 , DiGiorgio played in 12 games and made eight tackles . But when London Fletcher departed for Washington after the season , it gave DiGiorgio a chance to compete for the starting job . DiGiorgio had a big year for the Bills in 2007 . He played in all 16 games — the final 13 as a starter at middle linebacker — and was second on the team with 113 tackles . John took full advantage of Paul Posluszny ' s injury , and filled in as the middle linebacker in the 2007 season . As John filled in for the injured starting linebacker he did an exceptional job . His " blue - collar " work - ethics made him the 2007 Buffalo fan favorite . With Buffalo being a predominate blue - collared environment the fans took notice of John being a natural underdog in the NFL with a great work - ethic . The combination of hard - work and Buffalo natives recognizing his background , adversities , and doing an exceptional job as the backup MLB sparked the Buffalo fans support . He also had two fumble recoveries and an interception . The Bills were in the playoff hunt late in the season , but they lost their final three games to finish with a 7 - 9 record . Among DiGiorgio ' s highlights was his sack of New England Patriots ' quarterback Tom Brady in Week 3 for his first career sack . He also intercepted a pass from Tony Romo in a 25 - 24 loss to the Dallas Cowboys . However the following season , DiGiorgio appeared in six games primarily on special teams before tearing a ligament in his right knee while blocking on a punt return in the second quarter of a 23 - 14 win over San Diego in Week 7 . He was waived by the Buffalo Bills on July 25 , 2009 for failing his physical after having season - ending surgery to repair bone damage in his right knee . He retired on July 25 , 2010 . Personal . DiGiorgio is an Italian - American . DiGiorgio pursued his teaching certification at Saginaw Valley , stating that " ( NFL ) stands for ' Not For Long ' - - instead of the National Football League - - because careers don ' t last long in the NFL . John DiGiorgio was a student teacher at Siebert Elementary School in Midland . DiGiorgio , a former All - American at Saginaw Valley State University , helped out Bob Wellman in his physical education classes . He also delivered big hits that drew fans to create catch phrase for his incredibly astonishing , punishing , blows delivered to opposing players : " It ' s not delivery , it ' s Digiorgio ! " " . During the 2008 off - season , DiGiorgio began to student - teach physical education at Siebert Elementary in Midland , Michigan . In July 2010 he accepted a job teaching Physical Education and coaching at Chippewa Valley High School in Clinton Township , Michigan .