The Bears have signed first-round draft pick Shea McClellin to a four-year contract, the team announced Friday. The deal is worth $8.2 million, with $4.4 million guaranteed, according to a league source.

McClellin, a 6-3, 260-pound defensive end from Boise State, was the 19th overall pick in the NFL draft last month. He will wear jersey No. 99, the same as Hall of Famer Dan Hampton and Tank Johnson.

The Bears have signed five of their six draft picks. The only unsigned draftee is third-round pick Brandon Hardin, a safety from Oregon State.

The Bears opened their rookie mini-camp Friday at Halas Hall. All the drafted players are participating, plus undrafted free agents and tryout players. The mini-camp concludes Sunday.

The Bears also announced the signing of three veteran free agents to one-year contracts: defensive tackles John McCargo and DeMario Pressley and defensive end Cheta Ozougwu and