The moves announced Monday leave only third-round defensive end Arden Key unsigned among the Raiders’ nine draft picks.
Parker was selected 65th overall after playing four seasons at North Carolina A&T. He started all 48 games of his career at left tackle and was a three-time FCS All-American.
Article continues below ...
Nelson was drafted 110th overall. He played two seasons at Hawaii before playing his final college season at Wisconsin. Nelson led the nation and set a school record with 21 passes defensed last season for the Badgers. He had 42 passes defensed in his career but no interceptions.
More AP NFL: www.pro32.ap.org and www.twitter.com/AP-NFL