Welcome pro football fans to a new N.F.L.
Sunday, on the first full day of games in the 2018 season, there were surprises: Some of the most routine tackles, for example, are now penalties.
There were improvements: A reckless hit brought an immediate ejection.
And there was confusion: A new rule designed to curb the dangerous use of a player’s helmet was applied irregularly and did not prevent a scary injury.
It’s only one day. It will probably get better and you will likely get used to it.
You will also have no choice, because the N.