LOS ANGELES -- Southern California head coach Lane Kiffin says wide receiver Marqise Lee has a bone bruise in the area around his right shoulder and is considered day-to-day.

The All-American was banged up Friday at practice and missed the Trojans' morning practice Saturday. He was back for the evening session, though without pads.

Kiffin told reporters Saturday he expected Lee back in action soon and was relieved that it turned out to be not as serious as it looked.

Lee was hurt attempting to catch a long pass from Cody Kessler in coverage during Friday's workouts. He stayed down on the field before USC's medical staff escorted him away.

Lee had 118 receptions for 1,721 yards and 14 touchdowns last year as a sophomore, winning the Biletnikoff Award as the nation's top receiver. He also was the Pac-12's offensive player of the year.

USC has already lost two wide receivers for the season. George Farmer injured his knee during spring practice and freshman Steven Mitchell hurt his knee in June during a voluntary workout with teammates.