Tyrann Mathieu can come through big time for PETA if he intercepts Tom Brady in the big game ... a fan is dangling a 6-figure carrot for the dog-loving Kansas City Chiefs star.
The animal rights org tells TMZ ... an anonymous fan has offered to donate a whopping $100,000 to PETA if Tyrann makes an interception in the Super Bowl.
We're told the money is earmarked for PETA's fieldwork team, which operates in parts of Virginia and North Carolina and provides free pet services to low-income communities.
$100k would go a long way for dogs in distress in those areas .