Jon Gruden threw a party Friday evening. The dress code: Silver and black. Before convening for training camp next week, the Raiders and their returning head coach put on a fan appreciation event Friday at Ricky's Sports Theatre and Grill in San Leandro. More than 500 fans attended the event, which featured no cover charge, free food, music and a spirited Gruden leading the proceedings. Fans were asked not to begin lining up until 3 p.m. - some arrived before...
SFGate