INDIANAPOLIS, IN - OCTOBER 18: Tom Brady #12 of the New England Patriots gives instructions to his team during the game against the Indianapolis Colts at Lucas Oil Stadium on October 18, 2015 in Indianapolis, Indiana. (Photo by Andy Lyons/Getty Images)

The NFLPA says its looking into an explosive claim about Tom Brady's health

Controversial comments spark action.

The NFPA says it's looking into Gisele Bundchen's claim that her husband, Tom Brady, had a concussion last season.

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TMZ.com reported that  the NFLPA said it had no other comment beyond that.

Gisele Bund made the statement on CBS this morning:

She said her husband suffered a concussion last season and "He does have concussions."

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That's an explosive statement on several fronts. First, on injury reports over the last four years, Brady has never had a concussion listed.

Second, the NFL has been under fire for its handling of concussions, and to its credit, has taken steps to make sure players that exhibit any signs are treated immediately and aggressively. There would be a ton of questions if the league's most viable player was someone able to skirt those requirements.

The New England Patriots had no comment.

ESPN's Bomani Jones added some more perspective:

Brady, the five-time winning Super Bowl quarterback, hadn't missed a game since 2008, when he went down with a knee injury in the opening contest of the season and missed 15 games.