Since then, the numbers have gotten worse.
Blackwell has been battling illness over the week.
USC interim head coach Ed Orgeron said after Monday's practice that Lee is "very questionable" for Thursday night's game hosting Arizona. Lee has not practiced since suffering the injury Sep. 28. Orgeron is still hoping for a "miraculous" recovery, though receivers coach Tee Martin said after Sunday's practice there is no point rushing a player with Lee's NFL future back to the field.
On Sunday by the end of practice the only available scholarship receiver was Agholor.
On Monday, Rogers made a limited return to practice.
Walk-ons Robby Kolanz and George Katrib continue to take first team reps.