KANSAS CITY, Mo. (AP) — The Chiefs waived Neiko Thorpe on Monday and re-signed offensive lineman Bryan Mattison, who had been waived just last week to make room for the rookie defensive back. The Chiefs wanted Thorpe available to help on special teams and provide some help in the defensive backfield in Sunday’s 9-6 loss to the Baltimore Ravens. They waived Mattison, who has played 15 games over two seasons in St. Louis and Baltimore, to clear roster space for him. Injured backup defensive back Jalil Brown is expected back at practice this week, and the Chiefs brought back Mattison to provide depth along the offensive line.