Agent Bill Johnson broke the news via an e-mail sent Thursday night. Thompson will sign the deal on Saturday, one day before the players report for training camp and two days before camp opens.
"I've always appreciated his preparation and sense of fairness," Johnson said of Russ Ball, the Packers' chief negotiator.
The four-year contract is worth just more than $3.4 million.
The Packers hope Thompson — the brother of Packers offensive tackle Orrin Thompson — can add an immediate boost to the pass rush while possibly fighting for a starting job down the road. He finished with 6.5 sacks as a senior.
"He's awfully excited about his opportunity and eager to get to work," Johnson wrote.
On Thursday afternoon, the Packers released three players, including former University of Wisconsin punter Ken DeBauche, who played high school ball at Bay Port in the Green Bay suburb or Suamico. Also waived were linebacker Marcus Riley and cornerback Kyle Ward. With the 80-player roster limit, the Packers are forced to release players once draft picks are signed.
Bill Huber writes for Packer Report. E-mail him at firstname.lastname@example.org