What is the car doing? Having done that same exact misshift I would say you have more things to worry about like piston to valve contact where you bend the valves. Maybe even a spun bearing (rare) but possible.
i think mine also might be pooched. when i downshift from 3rd to 2nd, as i press the clutch i hear a whining sound, but as soon as the cluch is all the way down, it stop. once it goes into 2nd and i being the release the clutch, the whining sound comes back until it is all the way released. would that be the throwout bearing?
*edit* P.S i didnt realize this thread was 1 year old lol. at least i searched it ^_^