He was a first-team All Big 12 Conference selection his junior and senior years as well as first team All-American and team co-MVP as a senior. Quentin Jammer was drafted with the 5th overall pick during the first round of the 2002 NFL Draft by the San Diego Chargers. He played for the Chargers for 11 seasons. Quentin Jammer played only four games during his rookie season but in 2003 he started at cornerback and has been starting ever since. He played for San Diego through the end of the 2012 season and signed with the Denver Broncos in late May 2013.