Paul Gutierrez ESPN Staff Writer
The Raiders announced they have signed first-round draft picks Clelin Ferrell, the No. 4 overall draft pick, and Johnathan Abram, the No. 27 overall pick, as well as second-round cornerback Trayvon Mullen, the 40th overall selection, to their rookie contracts on Tuesday. That means that eight of Oakland's nine draft picks are signed, leaving only first-round running back Josh Jacobs (No. 24 overall) as unsigned. All of the rookies took part in the team's offseason training program, though, with Ferrell and Abram getting reps with the first-team defense at defensive end and safety, respectively, and are finishing out the Raiders' player engagement program this week.