Hockey is a high octane sport that is physical in nature and if you don't keep your head up, there's a surprise around every corner.
Yesterday in the KHL SKA St. Petersburg took on Ak Bars Kazan. Ak Bars forward Alexander Radulov caught St. Petersburg's Valentin Zykov with his head down sending him and his teeth flying: take a look:
There was no call on the play and Radulov did seem to hit him from an awkward angle, no call on the play is questionable at best, especially because he appeared to catch him in the mouth