With Walt Williams scheduled to return from a sprained right ankle at Phoenix on Saturday after being sidelined for 18 games, the Rockets learned Thursday that guard Oscar Torres suffered a sprained right ankle during practice Wednesday that could force him to the injured list.

After suffering what was believed to be a mild sprain Wednesday, Torres arrived for practice Thursday with a badly swollen right ankle. Coach Rudy Tomjanovich said Torres likely would not be able to play against the Suns or Sunday at Los Angeles against the Lakers.

"Walt's coming back one way or the other (this weekend)," said Tomjanovich. "We've got until game time (Saturday) to decide which way we go. That (putting Torres on the injured list) is one of the options."