Jackson, who will be competing against incumbent Vernand Morency for the starting running back position in Green Bay's backfield, received at $760,000 signing bonus as part of a deal worth more than $2.4 million, according to the source. His base salaries will be $285,000 this season, $370,000 (2008), $460,000 (2009) and $550,000 (2010).
Jackson's signing leaves the Packers with only two of their 11 total picks unsigned – defensive tackle Justin Harrell (first round), and wide receiver James Jones (third round). Players are scheduled to report to camp on Thursday. The team's first full-squad practice is set for Saturday at 2 p.m. at Clarke Hinkle Field.
Jackson started 11 of 33 games at Nebraska. He carried 291 times for 1,431 yards (4.9 avg.) and 14 touchdowns. He gained 318 yards with a pair of scores on 34 receptions (9.4 avg.) and scored 96 points. He also returned 32 kickoffs for 579 yards (18.1 avg.), finishing with 2,328 all-purpose yards, an average of 70.55 yards per game.
"Football is a relative game," said offensive coordinator Joe Philbin about Jackson. "If you see a guy that has a lot of success in college, you've got to believe that if he has enough physical talent, he could do it in the NFL. Having said that, hopefully if he can pick up our system quick enough, hopefully he'll have a chance to help us."