Rob Jensen spent time on both sides of the ball at Creighton Prep High School, playing as a defensive tackle and also on the offensive line. He walked on to the Nebraska program before the 2010 season, joining fellow Creighton Prep linemate Scott Criss, who transferred from Wyoming.
Before Nebraska (Creighton Prep HS)
Following his senior season, Jensen was named to the Class A All-District 5 team. Jensen helped power the Junior Jays to state playoff appearances all four years of his high school career (2006-09), including a semifinal appearance in 2008. In his first three seasons, Jensen played on the line with current NU teammate Scott Criss.