Raiders coach Lane Kiffin returned to the team Wednesday after spending the previous two days in a nearby hospital. Tests revealed that Kiffin likely has mononucleosis. Kiffin presided over his team for the first time since it played an exhibition game against the Arizona Cardinals on Saturday night. The only overt signs of his illness were the loss of 11 pounds and a more subdued approach. "(Doctors) think it's 95 percent that that's what it is, and they've treated me that way," Kiffin said. "The limitations are that I'm really not supposed to do anything but walk out here, I'm not supposed to exert energy and yell. I guess a lot of head coaches coach that way anyway, so I'm going to get to see what it's like."