The Cincinnati Bengals have signed first-round pick Keith Rivers to a six-year deal after the linebacker stretched his holdout to ten days, according to ESPN.com's John Clayton. Rivers was expected to join the team for practice on Wednesday morning. "He's behind, but we'll work to get him up to speed, and we know he's the kind of player who will get himself caught up," Coach Marvin Lewis said. "Right from the start, through the draft and minicamps, he has shown us things that are innate to successful NFL linebackers."