Lane Kiffin: no more tackling

After an ankle injury to starting defensive tackle Nick Perry Wednesday, coach Lane Kiffin said the Trojans will not engage in live tackling the remainder of fall camp with the exception of two weekend scrimmages, the first of which is Saturday.

USC is limited to 70 scholarship players due to transfers after NCAA-imposed sanctions.

"We do one drill live and this happens," Kiffin said. "We can't afford to do it. We won't do any live tackling in live drills besides preseason games 2 and 3. We won't do it in practice ever again until about four years from now."

Perry was diagnosed with a high ankle sprain and told he likely will be out for about two weeks. The Trojans are still hopeful Perry will be able to play in the Sept. 2 opener at Hawaii, but they moved Derek Simmons to end from defensive tackle to bolster their numbers. Kiffin also said whichever middle linebacker, Chris Galippo or Devon Kennard, doesn't win the starting job could line up at defensive end at times.

* Guard Butch Lewis said he should return to practice in about a week. After an MRI, he was diagnosed with a hip flexor injury. Lewis said doctors ruled out the need for surgery.