Don't get this. If Spurs doctors cleared him to play it's because they think his injury doesn't have long-term issues.
I understand if Kawhi feels something is still wrong, like Shannon said today about his shoulder and why he opted not to play, doctors can say there isn't structural damage which is great but the player still can feel there are some little malfuctions.
But again, the Spurs doctors were clear there isn't structural damage, it means it's not degenerative. Otherwise, they should have seen the changes and damage in the 6 years Kawhi is in SA.
The Spurs believe it's not a career altering -they shouldn't say he can play if they think the opposite- why not to give the supermax to a top 3-5 player?
After they cleared him to play, the Spurs can't use the same injury as excuse to refuse to give him the deal.