NFL free agency grade: Raiders pay big for C Tyler Linderbaum, the top offensive lineman in free agency The Raiders reset the market at center when they signed Tyler Linderbaum. Content Original Link: https://sports.yahoo.com/nfl/article/nfl-free-agency-grade-raiders-pay-big-for-c-tyler-linderbaum-the-top-offensive-lineman-in-free-agency-180243216.html