It's no secret that NASCAR Sprint Cup Series drivers Kyle Busch and Regan Smith are huge fans of the Denver Broncos, who hosted the New England Patriots on Sunday in the AFC Championship game.

They and others in the NASCAR community have not been shy about displaying their NFL loyalties and passion on social media, and Sunday was no exception.

The Patriots-Broncos game was the first of two NFL playoff games on the national stage Sunday. The NFC Championship game between the Carolina Panthers and Arizona Cardinals was set for a 6:40 p.m. ET kickoff in Charlotte, N.C., -- right in the backyard of most NASCAR teams whose based in the area. The NFC title game was to be televised by FOX Sports.

More from FoxSports

Take a closer look at what all the NASCAR types were saying:

Who's ready 2 Rock? We r ready for a win @broncos

— Kyle Busch (@KyleBusch) January 24, 2016

Is it game time yet! Ready to watch the @Broncos get after it #UnitedInOrange

— Regan Smith (@ReganSmith) January 24, 2016

When football is on TV but the #DAYTONA500 is on your mind…Check out these playoff inspired rides from @NASCARONFOX

— Daytona IntlSpeedway (@DISupdates) January 24, 2016

We like your choice of beverage @MillerLite

— Team Penske (@Team_Penske) January 24, 2016

Tailgate prep 😎 #CLT #keepPounding

— Alan Cavanna (@CopaCavanna) January 24, 2016

Mr. Hendrick says @Panthers win today @BankofAmerica Stadium if they stay on the ⛽️. #OneCarolina @JBsportscaster

— Hendrick Motorsports (@TeamHendrick) January 24, 2016

Little @broncos pre game going on here

— Kyle Busch (@KyleBusch) January 24, 2016

Boom! Hoping for a good day for #CLT #KeepPounding

— Alan Cavanna (@CopaCavanna) January 24, 2016

Game one about to go down!

— Casey Mears (@CJMearsGang) January 24, 2016

Brady. Manning. Who you got today, #RFRDriven fans?

— Roush Fenway Racing (@roushfenway) January 24, 2016

Headed downtown to @Panthers game - hope the home team can get it done tonight!

— Kaitlyn Vincie (@kaitlynvincie) January 24, 2016

Vincie, who is a member of the FOX Sports NASCAR broadcast team, had a great idea to attend the NFC Championship game in person. But for those less fortunate, don't forget to tune into the television broadcast of the big game on FOX, with coverage beginning at 6 p.m. ET.