The NFL has reminded coaches and other team workers to wear masks while on the sidelines during games in accordance with coronavirus guidelines.
The league sent a memo to all 32 teams Monday morning, commending them for a relatively smooth Week 1 -- and cautioning them not to become complacent.
While many coaches, trainers and other sideline personnel were in compliance with face-covering measures, there were also plenty of situations from games around the league in which coaches appeared to take off their masks for fresh air or to converse with players and officials.
“We must remain vigilant and disciplined in following the processes and protocols put in place by not only the league, union and clubs, but also by state and local governments," the memo from NFL vice president of football operations Troy Vincent read, as reported by the Associated Press.
Vincent's note cautioned teams that the hard work put in to achieve the successful first week could easily be undone if they become lax in observing the measures. It also warned of potential consequences for those who don't observe the rules.
“Failure to adhere to this requirement will result in accountability measures being imposed against offending individuals and/or clubs,” the memo said. “The face covering must be worn as designed so that it securely fits across the wearer’s nose and mouth to prevent the transmission of the virus.”
Social media flagged Los Angeles Rams coach Sean McVay during his team's game against the Dallas Cowboys on Sunday night, when he was seen in flagrante delicto several times.
Chiefs coach Andy Reid famously struggled with condensation inside his face shield during his team's opener in rainy Kansas City on Thursday night in what became perhaps the season's first meme-friendly moment.
Reid's "brutal" experience apparently prompted fears among at least one of his fellow coaches that he too might struggle with the shield or end up the butt of jokes. Ravens coach John Harbaugh later said he would ditch the shield, which he had been considering wearing to accommodate his eyeglasses.
Harbaugh ultimately rocked a gaiter-style face covering, similar to the ones he wore throughout training camp.