The National Football League is back, but it doesn't look quite the same.

Because of the coronavirus pandemic, only a limited number of fans could attend Thursday night's season opener between the Kansas City Chiefs and the Houston Texans. Just 22% of the seats were allowed to be filled at Kansas City's Arrowhead Stadium. Those in attendance also had to wear masks and maintain social distancing.

Other teams aren't allowing any fans right now.

It's not just the stands that look different. No cheerleaders, mascots or sideline reporters are allowed on the field, according to league officials.

Even the players and coaches have new protocols. They'll have to avoid the typical post-game handshakes and hugs with the opposing team.

Kansas City Chiefs head coach Andy Reid talks with quarterback Patrick Mahomes from behind a face shield during their game against the Houston Texans on Thursday, September 10.
Kansas City Chiefs head coach Andy Reid talks with quarterback Patrick Mahomes from behind a face shield during their game against the Houston Texans on Thursday, September 10.
Jamie Squire/Getty Images
Los Angeles Chargers wide receiver Mike Williams attempts a one-handed catch during the second half of a game against the Cincinnati Bengals on Sunday.
Los Angeles Chargers wide receiver Mike Williams attempts a one-handed catch during the second half of a game against the Cincinnati Bengals on Sunday.
Andy Lyons/Getty Images
Cardboard cutouts of fans are seen in the stands behind the end zone during a game between the San Francisco 49ers and Arizona Cardinals at Levi's stadium on Sunday.
Cardboard cutouts of fans are seen in the stands behind the end zone during a game between the San Francisco 49ers and Arizona Cardinals at Levi's stadium on Sunday.
Kyle Terada/USA Today Sports
The Washington Football Team and Philadelphia Eagles stand together in a moment of unity before their game at FedExField in Landover, Maryland, on Sunday. The two teams gathered on the field and locked arms during the playing of the hymn "Lift Every Voice and Sing," known as the <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Finteractive%2F2020%2F09%2Fus%2Flift-every-voice-and-sing-trnd%2F" target="_blank">Black National Anthem</a>, sung by Grammy Award-winning Alicia Keys. The song was played or performed <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2020%2F09%2F02%2Fus%2Fnfl-social-justice-end-zones-spt-trnd%2Findex.html" target="_blank">before every game on opening weekend</a>.
The Washington Football Team and Philadelphia Eagles stand together in a moment of unity before their game at FedExField in Landover, Maryland, on Sunday. The two teams gathered on the field and locked arms during the playing of the hymn "Lift Every Voice and Sing," known as the Black National Anthem, sung by Grammy Award-winning Alicia Keys. The song was played or performed before every game on opening weekend.
Greg Fiume/Getty Images
New York Jets linebacker Harvey Langi breaks up a pass intended for Buffalo Bills running back Devin Singletary during the second half of their game on Sunday.
New York Jets linebacker Harvey Langi breaks up a pass intended for Buffalo Bills running back Devin Singletary during the second half of their game on Sunday.
Jeffrey T. Barnes/AP
The San Francisco 49ers run onto the field before their game against the Arizona Cardinals on Sunday.
The San Francisco 49ers run onto the field before their game against the Arizona Cardinals on Sunday.
Ezra Shaw/Getty Images
Atlanta Falcons owner Arthur Blank bumps forearms with Seattle head coach Pete Carroll during pregame warmups at Mercedes-Benz Stadium in Atlanta on Sunday.
Atlanta Falcons owner Arthur Blank bumps forearms with Seattle head coach Pete Carroll during pregame warmups at Mercedes-Benz Stadium in Atlanta on Sunday.
Kevin C. Cox/Getty Images
Kansas City Chiefs quarterback Patrick Mahomes throws a pass during the first quarter of Thursday night's game at Arrowhead Stadium.
Kansas City Chiefs quarterback Patrick Mahomes throws a pass during the first quarter of Thursday night's game at Arrowhead Stadium.
Denny Medley/USA Today Sports
A detailed view of cleats worn by New England Patriots quarterback Cam Newton before a game between the Patriots and the Miami Dolphins at Gillette Stadium on Sunday. The cleats featured the phrases, "Say their names," "It ends now" and "No Justice, No Peace," in white letters as well as "7 shots" in red letters, the number of times 29-year-old Jacob Blake was <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fus%2Flive-news%2Fkenosha-wisconsin-police-shooting%2Fh_14f4596f815cb32fbaa0bc5dace7a98b" target="_blank">shot in the back</a> by police in Kenosha, Wisconsin, on August 23.
A detailed view of cleats worn by New England Patriots quarterback Cam Newton before a game between the Patriots and the Miami Dolphins at Gillette Stadium on Sunday. The cleats featured the phrases, "Say their names," "It ends now" and "No Justice, No Peace," in white letters as well as "7 shots" in red letters, the number of times 29-year-old Jacob Blake was shot in the back by police in Kenosha, Wisconsin, on August 23.
Maddie Meyer/Getty Images
The Minnesota Vikings pay tribute to George Floyd before their game against the Green Bay Packers on Sunday. Floyd's family was in attendance for the game and was recognized after the pre-game performance of "Lift Every Voice and Sing."
The Minnesota Vikings pay tribute to George Floyd before their game against the Green Bay Packers on Sunday. Floyd's family was in attendance for the game and was recognized after the pre-game performance of "Lift Every Voice and Sing."
Stephen Maturen/Getty Images
Chiefs fans wear masks during Thursday night's game between the Houston Texans and Kansas City Chiefs.
Chiefs fans wear masks during Thursday night's game between the Houston Texans and Kansas City Chiefs.
Jeff Roberson/AP
Jacksonville Jaguars cheerleaders perform from a platform during a game against the Indianapolis Colts in Jacksonville, Florida, on Sunday.
Jacksonville Jaguars cheerleaders perform from a platform during a game against the Indianapolis Colts in Jacksonville, Florida, on Sunday.
Don Juan Moore/Getty Images
Green Bay Packers quarterback Aaron Rodgers passes the ball to Allen Lazard during the fourth quarter of their game against the Minnesota Vikings on Sunday.
Green Bay Packers quarterback Aaron Rodgers passes the ball to Allen Lazard during the fourth quarter of their game against the Minnesota Vikings on Sunday.
Stephen Maturen/Getty Images
A security guard looks over the empty Carolina Panthers' stadium before a game between the Panthers and the Las Vegas Raiders on Sunday.
A security guard looks over the empty Carolina Panthers' stadium before a game between the Panthers and the Las Vegas Raiders on Sunday.
Chris Carlson/AP
Fans tailgate outside Arrowhead Stadium before Thursday's game between the Kansas City Chiefs and the Houston Texans.
Fans tailgate outside Arrowhead Stadium before Thursday's game between the Kansas City Chiefs and the Houston Texans.
Charlie Riedel/AP
Philadelphia Eagles running back Jason Huntley has his jersey torn while being tackled during a game between the Eagles and the Washington Football Team on Sunday.
Philadelphia Eagles running back Jason Huntley has his jersey torn while being tackled during a game between the Eagles and the Washington Football Team on Sunday.
Al Drago/AP
Fans stand for the National Anthem before a game between the Jacksonville Jaguars and Indianapolis Colts on Sunday. Jacksonville was one of the few teams that had fans in attendance.
Fans stand for the National Anthem before a game between the Jacksonville Jaguars and Indianapolis Colts on Sunday. Jacksonville was one of the few teams that had fans in attendance.
Stephen B. Morton/AP
Chicago Bears quarterback Mitchell Trubisky fumbles the ball during the game against the Detroit Lions at Ford Field on Sunday.
Chicago Bears quarterback Mitchell Trubisky fumbles the ball during the game against the Detroit Lions at Ford Field on Sunday.
Nic Antaya/Getty Images
Kansas City Chiefs and Houston Texans locked arms for a moment of unity before Thursday's game. "Please join us in a moment of silence dedicated to the ongoing fight for equality in our country," the announcer at the stadium said.
Kansas City Chiefs and Houston Texans locked arms for a moment of unity before Thursday's game. "Please join us in a moment of silence dedicated to the ongoing fight for equality in our country," the announcer at the stadium said.
Jeff Roberson/AP
Tampa Bay Buccaneers quarterback Tom Brady celebrates a touchdown with offensive tackle Donovan Smith during a game against the New Orleans Saints in New Orleans on Sunday. This was Brady's first touchdown playing for the Buccaneers.
Tampa Bay Buccaneers quarterback Tom Brady celebrates a touchdown with offensive tackle Donovan Smith during a game against the New Orleans Saints in New Orleans on Sunday. This was Brady's first touchdown playing for the Buccaneers.
Brett Duke/AP
A stadium employee looks at fan cutouts before the game between the Minnesota Vikings and the Green Bay Packers on Sunday.
A stadium employee looks at fan cutouts before the game between the Minnesota Vikings and the Green Bay Packers on Sunday.
Bruce Kluckhohn/AP
Hayden Hurst of the Atlanta Falcons pulls in a reception while guarded by Shaquill Griffin of the Seattle Seahawks at Mercedes-Benz Stadium on Sunday.
Hayden Hurst of the Atlanta Falcons pulls in a reception while guarded by Shaquill Griffin of the Seattle Seahawks at Mercedes-Benz Stadium on Sunday.
Kevin C. Cox/Getty Images
Seats sit empty at US Bank Stadium in Minneapolis during the Vikings' game on Sunday.
Seats sit empty at US Bank Stadium in Minneapolis during the Vikings' game on Sunday.
Stephen Maturen/Getty Images