10:05 AM PT -- 2/8 -- Some good news for Tyrann Mathieu — the person who vowed to donate $100k to PETA if the K.C. Chiefs star made an interception in the Super Bowl says he’ll still donate the money.
… and why? Because he thinks Mathieu and the Chiefs got royally screwed by the refs and he doesn’t think it’s fair to the animals!
A PETA spokesperson tells us the donor spoke with the org. on Monday morning and told them a check is on the way.
If you recall, Tyrann did pick off a pass in the 1st half — but it was called off due to a holding penalty on the Chiefs.