Both players were listed as questionable for the game against the Chargers. Porter is nursing a sore right hamstring, and Smiley has a shoulder injury.
"Joey didn't do too much today," Sparano said. "I kept his reps down a little bit. Justin was limited as well, but he did a little bit more."
Starting offensive tackle Vernon Carey, who has been nursing a sore right knee, took part in the entire practice and was listed as probable.
Porter's injury could create an opportunity for newcomer Cameron Wake, a two-time winner of the CFL's top defensive player award. Wake was inactive for the first two games this season.
Copyright 2009 by The Associated Press