Steelers' Brown could be fined for postgame live stream

Pittsburgh Steelers wideout Antonio Brown could be fined for violating the NFL's social media policy following his team's win over the Kansas City Chiefs, a league source told ESPN's Adam Schefter.

NFL rules prohibit players from posting anything on social media 90 minutes before kickoff and only after postgame interviews.

Brown streamed video live on Facebook from the Steelers' locker room after their win. In the video, head coach Mike Tomlin could be heard calling the Steelers' upcoming opponents the New England Patriots "assholes."