Aaron Corp Aaron Corp ( born March 6 , 1989 ) is an American football quarterback for the Buffalo Bills of the National Football League ( NFL ) . He was signed as undrafted free agent by the Bills in 2012 . He played college football for the University of Richmond . He also played for the University of Southern California ( USC ) prior . High school . Corp had an outstanding high school career at Orange Lutheran High School . A dual - threat quarterback , Corp completed 212 - of - 311 ( 68 . 2 % ) of his passes for 2 , 750 yards , 21 TDs and 7 interceptions , plus ran for 1 , 197 yards on 142 carries ( 8 . 4 avg . ) with 12 TDs , in 2006 . He also punted . Orange Lutheran went 14 - 1 and won the 2006 CIF Pac - 5 Division and the California state Division II championships . He won the 2006 Glenn Davis Award for the best Southern California high school player . College . Corp started his career the University of Southern California where he was a redshirted during the 2007 season , and entered the 2008 season as a possible back - up for starting quarterback Mark Sanchez , alongside Arkansas transfer Mitch Mustain . During fall camp before the 2008 season , Sanchez suffered a dislocated left kneecap while warming up for practice ; the injury sidelined Sanchez and threw his availability for the season opener at Virginia ( and beyond ) into question . As a result , Mustain and Corp began alternating repetitions with the first team offense and competing for the possible starting spot . After missing nearly three weeks , Sanchez was cleared to play in the opener on the final day of fall camp ; Corp was selected as his back - up because he demonstrated a better command of the offense . However , head coach Pete Carroll kept the competition for the back - up spot open throughout the season , and the competition resulted in Mustain regaining the second spot for some games , and Corp for others , throughout the season . At the end of the 2008 season , Sanchez opted to forgo his final season and enter the NFL Draft , leaving the competition for the starting position in the 2009 season open between Corp , Mustain , and in - coming true freshman Matt Barkley , who like the other two also received major accolades as a high school player . Corp was widely considered the heir apparent to the vacated quarterback position following his impressive spring performances . He started at quarterback for the 2009 Spring Game and was atop the Trojan quarterback depth chart heading into fall camp . However , during fall camp , Corp suffered a fractured fibula and the starting job was awarded to Barkley . An injury to Barkley during the second game of the season resulting in Corp getting his first start against unranked Washington Huskies . Corp struggled throughout the game , completing 13 of 22 passes for 110 yards , one interception and no touchdowns , as the Huskies upset the heavily favored , No . 3 Trojans by a score of 16 – 13 ; it was the lowest number of passing yards for USC since Carroll took over the program in 2001 . Barkley returned to the starting position the following week , with Corp as the primary back - up . On January 7 , 2010 , USC coach Pete Carroll confirmed that Corp decided to transfer to the Richmond Spiders program in the Football Championship Subdivision . Because Richmond is an FCS program , Corp was eligible to play immediately as a RS junior in 2010 . Corp started the first 5 games of the season , leading the Spiders to a 2 - 2 record through 4 . He was injured early in Richmond ' s October 9th loss to New Hampshire and had to be replaced by third - string QB Nick Hicks . On the season , Corp completed 67 of 123 pass attempts for 645 yards , 3 touchdowns and 4 interceptions . His 129 yards / game average was the best on the team , which saw six different players attempt passes throughout the season . He also recorded 19 rushes for 15 total yards . Corp is again the Richmond Spiders starting quarterback in 2011 as a senior . He has led the CAA team to a 2 - 0 record to start the season , including a road win against the Duke Blue Devils from the ACC . Corp has thrown for 429 yards and has 3 touchdowns against 3 interceptions . Professional career . Buffalo Bills . Corp was signed by the Buffalo Bills on April 28 , 2012 after going undrafted in the 2012 NFL Draft . He was released by the Bills on May 14 , 2012 to make room on the roster . He re - signed with the Bills on February 14 , 2013 .