Got fuller story - wasn't a baton, it was a pavement!
A couple of polis started chasing some bloke and didn't care who got in their way, her and her friend were sent flying. She fell awkwardly and bashed her face - result, broken nose and badly sprained wrist. And this was well before anything kicked off, about 10pm and the area around Taksim was (relatively) quiet as they'd just started blocking the square off.
All a bit different now...
JF