Richard Seymour signed his $12.4 million exclusive franchise tag tender with the Oakland Raiders on Saturday. By placing the tag on Seymour in February, the Raiders guaranteed Seymour a salary for next season of at least $12.398 million, which was the average salary earned last year by the five highest-paid defensive ends in the league. Seymour, 31, was not allowed to negotiate with other teams so it was inevitable that he would return to the Raiders.