What happens if you get injured during basic training?

Ok so i have a slight strain in my lower hamstring, i went to a physio and he said 12/14 days to heal, i start my basic training for the british army (para's) in 20 days, what happens if this injury comes back during training will i get time to repair and carry on or will i be medically discharged, also what happens when your medically discharged. Thanks in advance guy!