Tom Brady says he can't go back to the NFL again because he's 'only allowed one un-retirement'

• MrBeast's advice for promoting Tom Brady's podcast was to tease a return from retirement by the Super Bowl champ.
• Brady says that he can't go back to the NFL again because he's "only allowed one un-retirement."

Tom Brady has come out of retirement once — and he can't do it again.

On a new episode of his SiriusXM podcast "Let's Go with Tom Brady, Larry Fitzgerald and Jim Gray" featuring guest YouTube star MrBeast, Brady says that his family would not be happy if he went back to the NFL again.

When asked for advice on how to market the podcast, MrBeast — whose real name is Jimmy Donaldson — joked that ratings would go up if Brady announced he's going back to playing football professionally once more.

"If you really wanted it to take off, I'd have Tom say he's coming out of retirement," Donaldson said on the podcast episode.

As Donaldson tries to egg Brady on to say those words, the Super Bowl champ declared: "I am not coming out of retirement."

"All you have to do is cut the 'not,' put that at the start, and be like 'Coming later in this podcast,' and your attention will be through the roof. The video will go crazy and you're good — problem solved," Donaldson added, referring to how Brady's soundbite should be used as an opening for the podcast episode.

Brady then shuts down the suggestion, saying that he can't tease the media or his fans like that.

"My parents would call, my kids would call. They'd kill me. I wouldn't be around by tonight," Brady added. "As I said, you're only allowed one un-retirement. And I've used it up."

The 46-year-old football star then goes on to poke fun at Donaldson's popularity among young viewers.

"At this point, I'm just looking forward to being in more of your videos because my kids don't think I'm shit," Brady said. "At the end of the day, Jimmy's the one that, you know, he's got their attention. So if he tells them to do something, he's got a lot more influence than I do."

The YouTube star then suggests Brady participate in a MrBeast video as a contestant.

"Imagine my viewers, they just click on a video, and it's like a hundred people competing, and then just randomly it's Tom Brady. They'd be like, 'What the heck?' It'd be so funny," Donaldson said, to which Brady readily agreed.

On one condition though, the football star added: "We just gotta make a competition that I'm somewhat decent at. You can't bury me alive or something like that!"