The Detroit Lions hosted their final voluntary workout on Thursday. On the final day ahead of a six-week break, the team got second-round pick Levi Onwuzurike, along with fourth-round picks Amon-Ra St. Brown and linebacker Derrick Barnes under contract.

Cornerback Ifeatu Melifonwu is the lone rookie needing to get his initial deal completed. 

According to Spotrac, Onwuzuruike's contract is worth $8.1 million over four years and includes a $3.3 million signing bonus. 

St. Brown and Barnes' rookie deals are both worth nearly $4.3 million, with the wideout making slightly more on his contract and signing bonus since he was selected one spot ahead of the ex-Boilermakers linebacker. 

Barnes, the No. 113 overall pick, is expected to have an opportunity for increased playing time at middle linebacker. 

The ex-Boilermaker is a player head coach Dan Campbell relates to, based on his "old-school" mentality.

"He's dependable, he's tough, and really, he's only been a stack backer for a year. He's got so much room to grow. He's got an old-school mentality about him." Campbell said in a recent Sirius XM interview. "He's already reached out to me. He wants to be 55. How throwback is 55 for an inside linebacker? It's so beautiful."

The Lions have signed six of their seven draft picks: Penei Sewell, Onwuzurike, Alim McNeill, St. Brown, Barnes and Jermar Jefferson.

More must-reads:

TODAY'S BEST
Historic NCAA settlement reached allowing schools to pay players
Celtics dominate Pacers in Game 2, take 2-0 ECF lead
Cavaliers fire head coach J.B. Bickerstaff
Connor McDavid's 2OT goal gives Oilers win over Stars in Game 1
Rob Manfred hints at big change coming to MLB
Scottie Scheffler arrest case takes another weird turn with new video
QB Russell Wilson believes Steelers can 'do something special'
Pacers star suffers injury in ugly Game 2 loss
Watch: Jaylen Brown's big second quarter lifts Celtics to halftime lead
Broncos HC Sean Payton raves about one QB's progress at OTAs
North Carolina basketball snags instant-impact player via transfer portal
Rams GM shares details about Stetson Bennett’s absence
Perpetual Bulls trade candidate once more hitting the rumor mill
MLB announces host venues for 2026 World Baseball Classic
Knicks marquee trade acquisition could bolt in free agency
Pistons make decision on new president of basketball operations
ESPN and longtime NFL reporter are parting ways
If Lions HC Dan Campbell's assessment of WR is accurate it could mean trouble for opponents
NBA closes investigation into embattled Thunder guard
NFL reporter predicts Cowboys' plan for QB Dak Prescott