GIF: Auburn's D'haquille Williams catches touchdown pass that should have been intercepted

File this one under plays that should never have happened but did. 

Against most teams, quarterback Nick Marshall's touchdown pass to receiver D'haquille Williams would have in all likelihood been intercepted.

But  not against Louisiana Tech's defensive backfield.

To give credit where credit is due, Williams did make a spectacular grab but how this pass didn't get picked off is quite the head-scratcher and borderline unacceptable.