In a letter to President Joe Biden, National Football League Commissioner Roger Goodell offered all 30 of the league's stadiums to be used as mass vaccination sites.
Goodell said the NFL and its teams "are committed to doing our part to ensure that vaccines are as widely accessible in our communities as possible."
"To that end, each NFL team will make its stadium available for mass vaccinations of the general public in coordination with local, state, and federal health officials," the letter, which was sent to Biden on Friday, said.
Seven NFL teams are already using their stadiums as vaccine sites, including the Arizona Cardinals, Atlanta Falcons, Baltimore Ravens, Carolina Panthers, Houston Texans, Miami Dolphins, and New England Patriots.
Goodell's letter was sent just days before the Super Bowl is set to take place at the Tampa Bay Buccaneers stadium in Florida.
Mass vaccine sites continue to open across the US as part of Biden's plan to deliver 100 million vaccines in 100 days, which includes opening 100 new vaccine sites.
Vaccines were first offered at Yankee Stadium to Bronx residents on Friday, where a long line of people waited to get their shots, CBS reported.
The San Francisco 49ers stadium, set to open next week, could be California's largest mass vaccination site, with a goal of administering 15,000 shots per day, the Los Angeles Times reported.
According to data from the Centers for Disease Control and Prevention, more than 30 million Americans have received an initial dose of the vaccine, which is administered in two doses several weeks apart. Over 8 million people have been fully vaccinated.
More than 460,000 Americans have died from COVID-19, while nearly 27 million have been infected, according to data compiled by John Hopkins University.