"Masked and vaccinated media are allowed back into locker rooms after being restricted last season."
"The NASCAR Cup Series Playoffs begin in less than two weeks at the Cook Out Southern 500, on Sunday, Sept. 5."
The broadcaster first started attending the Indy 500 in 1960.
"What we and NASCAR agreed to is we can create an awesome experience for users and fans without that retail sportsbook space."
Gordon had been an analyst for Fox since retiring from racing in 2015.
The Indianapolis 500 posted its best ratings in five years with viewership up over 50 percent from the 2020 race.
The city is hosting a top-level NASCAR race for the first time since 1984.
Johnson joins the NBC crew for his first in-person experience at the Indianapolis 500.
Gordon is expected to call this weekend's action at Martinsville Speedway.
Fans can call in and interact with their favorite NASCAR personalities.