![NFL Football Operations on Twitter: "Here's a look at the 2021 playing rules that were adopted by @NFL clubs today: https://t.co/sYPz77CghR https://t.co/cjM6BC2xKJ" / Twitter NFL Football Operations on Twitter: "Here's a look at the 2021 playing rules that were adopted by @NFL clubs today: https://t.co/sYPz77CghR https://t.co/cjM6BC2xKJ" / Twitter](https://pbs.twimg.com/media/EzhcdafX0AEAg7U.jpg:large)
NFL Football Operations on Twitter: "Here's a look at the 2021 playing rules that were adopted by @NFL clubs today: https://t.co/sYPz77CghR https://t.co/cjM6BC2xKJ" / Twitter
Why some NFL players might not change numbers for 2021 season despite new uniform rules | Sporting News
Tom Brady doesn't sound too happy about the NFL's decision to change the rule for jersey numbers - CBSSports.com
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