Derrick White will be out six to eight weeks after tearing a ligament in his right heel.
White had just inherited the starting point guard spot for the San Antonio Spurs after Dejounte Murray tore his ACL.
Lonnie Walker also is out with a torn meniscus.
"That's three of our youngest, most talented, fastest kids," Gregg Popovich said after another short-handed shootaround Friday morning. "We'll have to deal with it.
Bryn Forbes will become the Spurs' starting point guard.