Tonight could be a telling game of the way this team uses JJ. He should get easily 25+ mins, if he does then maybe he was just nursing the hamstring and that's why he wasn't getting much PT.
Leonard is going to be locking down the shooters all night, and if we don't utilize JJ to cut to the basket like the Clippers' game we'll be in a lot of trouble. He also shut down Blake Griffin, one of the most athletic players in the league, so he could take on Kawhi or the 4.