Kawhi Leonard's rehab of his quadriceps tendinopathy has progressed slower than the San Antonio Spurs initially expected.

"He's just coming along more slowly, for whatever reason," Gregg Popovich said before Leonard missed his 11th game Tuesday against the Los Angeles Clippers. "It's just been more difficult for him to get through the rehab routine. His body hasn't reacted the same way."

Leonard was ruled out for the preseason shortly after training camp began.

"I wouldn't want him to go right from rehab to jumping on the court," Popovich said. "He has to go 3-on-3, 5-on-5, feel comfortable."