Richardson, who is expected to compete with veteran Jermey Parnell at right tackle, was the 129th overall pick. He started 32 games in three seasons at North Carolina State.
Richardson's contact is worth $2,742,682, including a signing bonus of $327,682.
Lee's deal is worth $2,507,141 with a signing bonus of $92,141.
Cooke's contract is worth $2,531,623 with a signing bonus of $71,623. Jacobs' deal is similar.
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