Getty The New England Patriots got an injury update about the hidden gem on their historic defense. After addressing their biggest need on offense by signing running back Kenneth Walker III, the Kansas City Chiefs shifted their focus to the other side of the ball by acquiring defensive lineman Khyiris Tonga. According to a report from NFL insider Tom Pelissero, the Chiefs are signing Tonga to a three-year, $21 million contract. Defensive line is certainly one of their top roster needs, and