The NFL has updated their game day logs by requiring every coach and staff member in the bench area to wear a mask and reducing the size of each team's travel group.
Owners must also follow COVID-19 testing requirements to gain access to locker room, field, or team charter.
NFL Commissioner Roger Goodell said the league, the NFL Players Association and medical experts have "developed a comprehensive protocol that will put us in the best possible position to end the season and culminate in the Super Bowl in Tampa Bay."
There were four new confirmed positive tests among the players and six new confirmed positive tests among other staff from 58,621 tests conducted between August 21 and 29 on a total of 8,739 players and team staff.
"We have been very fortunate that the cases of COVID-19 across the league are very low," Goodell said on Tuesday. “It is proof of the plans, but above all of the hard work of the players, the teams and their employees. I would tell you we have more work to do. We won't make ourselves comfortable. We will remain vigilant, resilient, flexible and basically adapt to the circumstances that are necessary for public health as we have all these off-season. "
Dr. Allen Sills, the league's chief medical officer, says the league is monitoring new developments in test technology and continues to adapt to new information.
"We have a relentless opponent here, namely this virus, and we know that no matter how careful we are with all of our protocols and staff, there can be new cases," said Sills. "So we just have to be very vigilant and realize that we are still very early, but we are encouraged by what we have seen so far."
The league is working with public health officials to determine if fans are allowed into stadiums. Some teams are allowed to start the season with limited fans in the stands.
"I think we may have a lot of teams that start this season without fans and then develop into fans," said Goodell.
Some coaches have expressed displeasure at the inconsistent policy.
Bill's coach Sean McDermott called it "ridiculous" and Viking coach Mike Zimmer said it was "unfair" that some teams have fans and others don't.
"We don't think this is a competitive advantage," said Goodell. “We talked to our competition committee and our clubs about it very early on. We don't see that. We obviously have different capacities in the league. And from our point of view, we would like to invite our fans when we can do it safely and with the full support of local officials. "
Troy Vincent, executive of the NFL, said the league's competition committee is finalizing details on decibel levels for man-made noise channeled into stadiums.
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