What are the grounds for DQ?

[killersheep]

Soto got DQed for grazing the back of Lorenzo's head and that was much less blatant, Lorenzo also did not go down after.

Bottom line here is that it's the ref's call, it's clearly within his rights to do so based on the circumstance. If Cole deems a fighter is unable to continue from an illegal blow, even if a fighter IS able to continue a ref is in his rights to call a halt to a bout on an illegal shot like that.

Be that as it may, it is also the responsibility of the various athletic commissions to review fights for consistency.

One sport, one rule book.

The rules state it's the ref's discretion.

Rules of Boxing - Boxrec Boxing Encyclopaedia

"A violation of the following rules is considered a foul, and can result in a point deduction or disqualification"