DENVER, CO - JANUARY 24: Tom Brady #12 of the New England Patriots reacts in the second half against the Denver Broncos in the AFC Championship game at Sports Authority Field at Mile High on January 24, 2016 in Denver, Colorado. (Photo by Ezra Shaw/Getty Images)

Tom Brady's agent adds another layer to the growing concussion controversy

The NFL and NFLPA both say they're trying to get to the bottom of this.

Gisele Bundchen made headlines earlier this week after she claimed her husband, Tom Brady, suffered a concussion last season.

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Related: The NFL is now taking action following serious health complaints on Tom Brady  

If Brady did suffer a concussion and the New England Patriots failed to report it, then the franchise could be severely penalized by the NFL.

Brady's agent, Don Yee, told ESPN that his client did not in fact suffer a concussion last season.

"Tom was not diagnosed with a concussion last year," Yee said. "Many of the protocols and safeguards still are evolving, and it's obviously a good thing the organization and everyone close to him is vigilant and always looking out for his health."

Brady's wife, on CBS This Morning, said the quarterback suffered a concussion last year, and that set off a flurry of activity and statements from the NFLPA and the NFL vowing to get to the truth. the NFL, for example, said it would take a closer look at injury reports from the New England Patriots, and all reports about Brady filed by brain specialists and the spotters who worked NFL games last season for the Patriots, CBS reported.

Brady wasn't listed on an injury report for a head injury last year.

It doesn't look like this story is going away anytime soon.

(h/t ESPN)