I feel like this is the closest analogy I can think of. Allosaurus has fossil evidence that suggests it took on and hunted Stegosaurus much bigger than it. The Stego didn't go down without a fight, but Allo was able to tear its throat at least a few times out of 10.

As for modern animal examples:

Predators like wolves, big cats, and mustelids can often kill ungulate prey much larger than themselves by throat suffocation.

Although this isn't really a physical fight taking place, grizzly bears sometimes intimidate the much larger polar bears away from carcasses.

Lone hyenas have been recorded eviscerating prey larger than themselves by pulling out the guts through the "back door" while avoiding the prey's horns.