<Tr> <Td_colspan="2"> Player stats at NFL.com </Td> </Tr> <Tr> <Td_colspan="2"> Player stats at PFR </Td> </Tr> <P> John Thomas "J.T." O'Sullivan (born August 25, 1979) is a former professional gridiron football quarterback who played in the National Football League (NFL), NFL Europe and Canadian Football League (CFL) from 2002 to 2012 . He played college football for the UC Davis Aggies of the University of California, Davis, where he was a three - year starter and threw for career totals of 10,745 yards and 96 touchdowns . He was named a First Team All - American in 2000 and a Second Team All - American in 2001 . He was inducted into the Cal Aggie Athletics Hall of Fame in 2008 . </P> <P> O'Sullivan was drafted by the New Orleans Saints in the sixth round of the 2002 NFL Draft . He also spent time with 10 other NFL teams: the Green Bay Packers, Chicago Bears, Minnesota Vikings, New England Patriots, Carolina Panthers, Detroit Lions, San Francisco 49ers, Cincinnati Bengals, San Diego Chargers, and Oakland Raiders . He was a backup for the majority of his NFL career but began the 2008 season as the starter for the 49ers . He also played for the Frankfurt Galaxy of NFL Europe in 2004 and 2007, leading the Galaxy to the World Bowl each year . He earned All - NFL Europa and NFL Europa Co-Offensive MVP honors in 2007 . O'Sullivan spent the final season of his professional career as a backup for the Saskatchewan Roughriders of the CFL . </P>

Player that played for the most nfl teams