Yes, Your Injury appears to be a Grade 3 Severe degree sprain. Investigations now won't be of that much help. It is advisable to get yourself reviewed from sport physiotherapist of your club / nearby. So that She/He may be able to provide you with modalities such as UltraSound which helps to heal faster. and also, Some Range of motion exercise to restore back full range and few strengthening exercises for ankle to strengthen your foot so that you can be back in the game as soon as possible
Next Steps
Seek Counsultation from Sports Physiotherapist/ Ortho - Physiotherapist. and Stay calm. It should be matter of 3 weeks or so to get your normal walk restored and another 2 weeks more to back to game. wear ankle and shin supports when you are back in game.
Health Tips
DON'T LOOSE ANY MORE TIME. STAY HEALTHY