Redskins quarterback Robert Griffin III (knee) was back on the practice field Thursday and practiced in full for a second straight day. Griffin sat out Week 15 with an LCL sprain and is hopeful to return Week 16 at Philadelphia. Offensive coordinator Kyle Shanahan said he doesn't know if Griffin is 100 percent yet, but he will be given the choice to wear a knee brace if he plays Sunday. Coach Mike Shanahan said Griffin has yet to be cleared by the doctors, but is confident he will suit up Sunday. "If there's no setbacks, he should be able to go," Shanahan said.