Agreed. The question is, can the plaintiff prove that the masseuse deviated from ordinary professional standards in a way that would have expected to have this sort of result in a normal, healthy patient? This complaint sounds a bit like getting in the ring to spar, telling your sparring partner not to punch you in the face, then suing because one of their feints caught you in the chin.

If he was smart, the masseuse would have said, hey, sounds like massaging you could get me sued, I think I'll pass. But then she probably would have sued him for denying her service.