It seems to me that your case was not unusual.The body actually reported the problem by the first sharp pain in your lateral ankle. your reaction to this might have made u to shake the spot which could have delivered some analgesic effect plus the fact that the combatic sporting activities could have mobilised increased level of adrenalin in your body as rightly mentioned by Gcoe.This could mask your pain for the period the game last. hence the subreport of the extent of damage.The presentation does not exornorate ankle sprain neither does it rule out a stress fracture.Gcoe advice is golden at this point.A plain x ray of that part would be essential towards proper diagnosis on your way to solution.The way and how the ice was applied speaks a volume of what u get.Yelufem.