NEW YORK (Reuters) - Linebacker Rolando McClain became the highest pick in April's NFL Draft to sign a contract when he agreed to terms with the Oakland Raiders.

Terms of the deal for the Raiders' top draft pick and eighth overall were not disclosed in a report posted on the team's website on Thursday (www.raiders.com).

The draft's top three picks -- quarterback Sam Bradford (St. Louis) and defensive tackles Ndamukong Suh (Detroit) and Gerald McCoy (Tampa Bay) -- are among the unsigned players as training camps start this week, according to the league's official website (www.nfl.com).

(Writing by Gene Cherry in Raleigh, North Carolina; Editing by Frank Pingue)