NFL on ESPN - The Oakland Raiders also sent Antonio Brown a letter that he will no longer be entitle to termination pay if they release him, sources tell Adam Schefter.
Explaining Antonio Brown's helmet issue: What are the NFL's rules, Raiders' options, AB's contract?
Raiders prepare to move on — with or without Antonio Brown – Daily Democrat
What happened to Antonio Brown? Former Buccaneers WR faces uphill battle to continue NFL future
Report: Antonio Brown threatening to sit unless he can wear outdated helmet deemed unsafe
Antonio Brown wants Oakland Raiders to 'release me' after team voids guaranteed money
Here's what happened between Antonio Brown and the Raiders - The Boston Globe
Raiders' Antonio Brown attends team meeting but helmet still an issue
Antonio Brown likely not leaving the Patriots any time soon
Antonio Brown's Tumultuous N.F.L. Career - The New York Times
Antonio Brown's time as a Raider ends with an Instagram hashtag