If your athelete had a herniated disc

I’d like to say hi to everyone, this is my first post. Anyway, for all you sprint coaches out there… If you had an athelete with a herniated disc or previous disc injury, how would you approach their training. Lets say:
1.During rehab
2. After recovery
3. Some time down the track where the injury doesn’t seem to be bothering the athelete any more
Thanx to you all, and any replies would be appreciated