USC wide receiver Jamere Holland left camp Sunday and was expected to transfer, according to sources. He was at USC on Sunday morning but did not attend the afternoon practice. Holland, who attended Taft High in Woodland Hills, spent most of training camp injured, suffering from a concussion and a recurring groin injury that has plagued him since high school. He missed last season with a broken collarbone. Sources said Holland was unhappy with his situation even before getting hurt and it probably did not help matters that USC brought in talented freshmen receivers Ronald Johnson and Brandon Carswell.