USC fans may be holding their breath Saturday as they wait on word on a potential injury to All-American wide receiver Marqise Lee. The reigning Biletnikoff Award winner took a fall in practice Friday after catching a long pass from quarterback Cody Kessler. Lee stayed down on the field before being escorted off the field by USC medical staff. The Associated Press and other outlets reported Lee had likely injured his right shoulder. The Trojans have two practice sessions scheduled for Saturday. The source told Feldman he was unsure whether Lee would be be back within a week. Coach Lane Kiffin said after practice he hadn't seen the incident and had no update on Lee's status.