Jeffrey Richard "J. J." Jansen (born January 20, 1986) is an American football long snapper for the Carolina Panthers of the National Football League (NFL). He was signed by the Green Bay Packers as an undrafted free agent in 2008. He played college football at Notre Dame.
Jansen attended high school at Brophy College Preparatory in Phoenix, Arizona. He attended Rancho Solano Private School prior to that.
Green Bay Packers
After going unselected in the 2008 NFL Draft, Jansen signed with the Green Bay Packers.
The Packers traded Jansen to the Carolina Panthers for a conditional pick in the 2011 NFL Draft on April 13, 2009.
On February 8, 2012, the Panthers resigned him to a four-year contract.
On January 15, 2014, it was announced that he would be one of six Carolina Panthers players to be voted into the 2014 Pro Bowl. It would be Jansen's first Pro Bowl nomination.