NFL cracks down on internal dissent over officiating

NFL cracks down on internal dissent over officiating
Seattle Seahawks head coach Pete Carroll, tight, yells at referees during an NFL football game against the Baltimore Ravens, Sunday, Oct. 20, 2019 in Seattle, Wash. (Olivia Vanni /The Herald via AP)

The NFL threw yellow flags on Rams linebacker Clay Matthews, Browns quarterback Baker Mayfield and Lions safety Tracy Walker, fining each $12,500 for criticizing officials.

Matthews was disciplined for a tweet he posted after the Lions lost to his former team, the Packers, whom the NFL acknowledged benefited from an %href_on(file: